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3.7.3, ttyUSB0 serial problem - devices stop working and only reboot helps (Inappropriate ioctl for device)
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Arkadiusz Miskiewicz
Jan 18, 2013, 5:30:02 PM1/18/13
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Hi.
Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and FT232RL,
one after disconnecting another.
After few cycles of reconnecting and using socat (below) I'm getting problems
accessing ttyUSB0:
ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial doesn't
help. I have to reboot to get ttyUSB0 working (regardless of which driver,
ftdio_sio or cp210x is handling ttyUSB0 - both stop working).
Any clues?
Device found:
[ 1215.692096] usb 6-2: new full-speed USB device number 16 using uhci_hcd
[ 1216.256286] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 1216.256300] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1216.256308] usb 6-2: Product: FT232R USB UART
[ 1216.256315] usb 6-2: Manufacturer: FTDI
[ 1216.256322] usb 6-2: SerialNumber: A9W9TBMV
[ 1216.310445] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 1216.310647] usb 6-2: Detected FT232RL
[ 1216.310656] usb 6-2: Number of endpoints 2
[ 1216.310665] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 1216.310672] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 1216.310679] usb 6-2: Setting MaxPacketSize 64
[ 1216.312449] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
and a problem with accessing ttyUSB0:
[root@t400 ~]# socat -ddd -s -u
/dev/ttyUSB0,raw,echo=0,b115200,crnl,noctty,nonblock - | logger
2013/01/18 23:14:25 socat[8095] E tcgetattr(3, 0x7fff09579470): Inappropriate
ioctl for device
2013/01/18 23:14:25 socat[8095] E tcgetattr(3, 0x7fff095793e0): Inappropriate
ioctl for device
2013/01/18 23:14:25 socat[8095] E tcgetattr(3, 0x7fff095795b0): Inappropriate
ioctl for device
which is:
munmap(0x7faf81706000, 4096) = 0
write(2, "2013/01/18 23:14:55 socat[8120] E tcgetattr(3, 0x7fffb70c6c40):
Inappropriate ioctl for device\n", 952013/01/18 23:14:55 socat[8120] E
tcgetattr(3, 0x7fffb70c6c40): Inappropriate ioctl for device
) = 95
ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6a70) = -1 ENOTTY (Inappropriate ioctl for device)
write(2, "2013/01/18 23:14:55 socat[8120] E tcgetattr(3, 0x7fffb70c6bb0):
Inappropriate ioctl for device\n", 952013/01/18 23:14:55 socat[8120] E
tcgetattr(3, 0x7fffb70c6bb0): Inappropriate ioctl for device
) = 95
ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
write(2, "2013/01/18 23:14:55 socat[8120] E tcgetattr(3, 0x7fffb70c6d80):
Inappropriate ioctl for device\n", 952013/01/18 23:14:55 socat[8120] E
tcgetattr(3, 0x7fffb70c6d80): Inappropriate ioctl for device
) = 95
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6f50) = -1 ENOTTY (Inappropriate ioctl for device)
select(4, [3], [1], [], NULL) = 2 (in [3], out [1])
kernel log:
[ 59.985654] tun: Universal TUN/TAP device driver, 1.6
[ 59.985658] tun: (C) 1999-2004 Max Krasnyansky <ma...@qualcomm.com>
[ 60.010608] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 60.014958] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 114.796110] usb 6-2: new full-speed USB device number 2 using uhci_hcd
[ 115.360163] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 115.360176] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 115.360184] usb 6-2: Product: FT232R USB UART
[ 115.360192] usb 6-2: Manufacturer: FTDI
[ 115.360199] usb 6-2: SerialNumber: A9W9TBMV
[ 115.423115] usbcore: registered new interface driver usbserial
[ 115.423468] usbcore: registered new interface driver usbserial_generic
[ 115.424272] usbserial: USB Serial support registered for generic
[ 115.429982] usbcore: registered new interface driver ftdi_sio
[ 115.430471] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 115.430970] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 115.431217] usb 6-2: Detected FT232RL
[ 115.431226] usb 6-2: Number of endpoints 2
[ 115.431234] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 115.431241] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 115.431249] usb 6-2: Setting MaxPacketSize 64
[ 115.434351] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 122.664151] usb 6-2: USB disconnect, device number 2
[ 122.665319] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 122.665552] ftdi_sio 6-2:1.0: device disconnected
[ 125.164067] usb 6-2: new full-speed USB device number 3 using uhci_hcd
[ 125.328152] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 125.328165] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 125.328173] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 125.328181] usb 6-2: Manufacturer: Silicon Labs
[ 125.328188] usb 6-2: SerialNumber: 0001
[ 125.342690] usbcore: registered new interface driver cp210x
[ 125.342846] usbserial: USB Serial support registered for cp210x
[ 125.342970] cp210x 6-2:1.0: cp210x converter detected
[ 125.452106] usb 6-2: reset full-speed USB device number 3 using uhci_hcd
[ 125.600719] usb 6-2: cp210x converter now attached to ttyUSB0
[ 158.376173] usb 6-2: USB disconnect, device number 3
[ 158.377385] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 158.377631] cp210x 6-2:1.0: device disconnected
[ 160.996090] usb 6-2: new full-speed USB device number 4 using uhci_hcd
[ 161.565156] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 161.565170] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 161.565179] usb 6-2: Product: FT232R USB UART
[ 161.565186] usb 6-2: Manufacturer: FTDI
[ 161.565193] usb 6-2: SerialNumber: A9W9TBMV
[ 161.616326] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 161.616523] usb 6-2: Detected FT232RL
[ 161.616533] usb 6-2: Number of endpoints 2
[ 161.616541] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 161.616549] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 161.616556] usb 6-2: Setting MaxPacketSize 64
[ 161.618363] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 172.264170] usb 6-2: USB disconnect, device number 4
[ 172.265361] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 172.265603] ftdi_sio 6-2:1.0: device disconnected
[ 175.868109] usb 6-2: new full-speed USB device number 5 using uhci_hcd
[ 176.032171] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 176.032184] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 176.032193] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 176.032200] usb 6-2: Manufacturer: Silicon Labs
[ 176.032207] usb 6-2: SerialNumber: 0001
[ 176.037429] cp210x 6-2:1.0: cp210x converter detected
[ 176.148083] usb 6-2: reset full-speed USB device number 5 using uhci_hcd
[ 176.296534] usb 6-2: cp210x converter now attached to ttyUSB0
[ 179.208158] usb 6-2: USB disconnect, device number 5
[ 179.209051] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 179.209186] cp210x 6-2:1.0: device disconnected
[ 181.432130] usb 6-2: new full-speed USB device number 6 using uhci_hcd
[ 181.998176] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 181.998189] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 181.998198] usb 6-2: Product: FT232R USB UART
[ 181.998205] usb 6-2: Manufacturer: FTDI
[ 181.998212] usb 6-2: SerialNumber: A9W9TBMV
[ 182.050340] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 182.050532] usb 6-2: Detected FT232RL
[ 182.050542] usb 6-2: Number of endpoints 2
[ 182.050550] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 182.050558] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 182.050565] usb 6-2: Setting MaxPacketSize 64
[ 182.052353] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 190.368207] usb 6-2: USB disconnect, device number 6
[ 190.368884] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 190.369019] ftdi_sio 6-2:1.0: device disconnected
[ 201.412081] usb 6-2: new full-speed USB device number 7 using uhci_hcd
[ 201.928646] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 201.928658] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 201.928666] usb 6-2: Product: FT232R USB UART
[ 201.928673] usb 6-2: Manufacturer: FTDI
[ 201.928680] usb 6-2: SerialNumber: A9W9TBMV
[ 201.975670] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 201.975954] usb 6-2: Detected FT232RL
[ 201.975963] usb 6-2: Number of endpoints 2
[ 201.975971] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 201.975979] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 201.975987] usb 6-2: Setting MaxPacketSize 64
[ 201.978420] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 208.720121] usb 6-2: USB disconnect, device number 7
[ 208.720744] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 208.720914] ftdi_sio 6-2:1.0: device disconnected
[ 212.752140] usb 6-2: new full-speed USB device number 8 using uhci_hcd
[ 212.911539] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 212.911550] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 212.911559] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 212.911567] usb 6-2: Manufacturer: Silicon Labs
[ 212.911574] usb 6-2: SerialNumber: 0001
[ 212.916700] cp210x 6-2:1.0: cp210x converter detected
[ 213.028104] usb 6-2: reset full-speed USB device number 8 using uhci_hcd
[ 213.172172] usb 6-2: cp210x converter now attached to ttyUSB0
[ 807.640161] usb 6-2: USB disconnect, device number 8
[ 807.641334] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 807.641577] cp210x 6-2:1.0: device disconnected
[ 810.640093] usb 6-2: new full-speed USB device number 9 using uhci_hcd
[ 811.208154] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 811.208167] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 811.208175] usb 6-2: Product: FT232R USB UART
[ 811.208183] usb 6-2: Manufacturer: FTDI
[ 811.208190] usb 6-2: SerialNumber: A9W9TBMV
[ 811.259306] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 811.259507] usb 6-2: Detected FT232RL
[ 811.259516] usb 6-2: Number of endpoints 2
[ 811.259524] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 811.259532] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 811.259539] usb 6-2: Setting MaxPacketSize 64
[ 811.262459] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 825.496159] usb 6-2: USB disconnect, device number 9
[ 825.496836] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 825.496998] ftdi_sio 6-2:1.0: device disconnected
[ 828.344083] usb 6-2: new full-speed USB device number 10 using uhci_hcd
[ 828.509148] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 828.509162] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 828.509170] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 828.509178] usb 6-2: Manufacturer: Silicon Labs
[ 828.509185] usb 6-2: SerialNumber: 0001
[ 828.514331] cp210x 6-2:1.0: cp210x converter detected
[ 828.624117] usb 6-2: reset full-speed USB device number 10 using uhci_hcd
[ 828.773481] usb 6-2: cp210x converter now attached to ttyUSB0
[ 835.416141] usb 6-2: USB disconnect, device number 10
[ 835.418207] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 835.418419] cp210x 6-2:1.0: device disconnected
[ 837.176104] usb 6-2: new full-speed USB device number 11 using uhci_hcd
[ 837.742175] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 837.742190] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 837.742199] usb 6-2: Product: FT232R USB UART
[ 837.742206] usb 6-2: Manufacturer: FTDI
[ 837.742213] usb 6-2: SerialNumber: A9W9TBMV
[ 837.794292] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 837.794483] usb 6-2: Detected FT232RL
[ 837.794492] usb 6-2: Number of endpoints 2
[ 837.794500] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 837.794508] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 837.794515] usb 6-2: Setting MaxPacketSize 64
[ 837.796791] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 847.320187] usb 6-2: USB disconnect, device number 11
[ 847.320837] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 847.320997] ftdi_sio 6-2:1.0: device disconnected
[ 848.880117] usb 6-2: new full-speed USB device number 12 using uhci_hcd
[ 849.444245] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 849.444251] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 849.444254] usb 6-2: Product: FT232R USB UART
[ 849.444257] usb 6-2: Manufacturer: FTDI
[ 849.444259] usb 6-2: SerialNumber: A9W9TBMV
[ 849.496469] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 849.496672] usb 6-2: Detected FT232RL
[ 849.496681] usb 6-2: Number of endpoints 2
[ 849.496689] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 849.496697] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 849.496704] usb 6-2: Setting MaxPacketSize 64
[ 849.498442] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 858.650031] usbserial: USB Serial deregistering driver FTDI USB Serial
Device
[ 858.650574] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 858.650724] usbcore: deregistering interface driver ftdi_sio
[ 858.650915] ftdi_sio 6-2:1.0: device disconnected
[ 861.952207] usb 6-2: USB disconnect, device number 12
[ 864.480119] usb 6-2: new full-speed USB device number 13 using uhci_hcd
[ 864.992179] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 864.992192] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 864.992201] usb 6-2: Product: FT232R USB UART
[ 864.992208] usb 6-2: Manufacturer: FTDI
[ 864.992215] usb 6-2: SerialNumber: A9W9TBMV
[ 865.050749] usbcore: registered new interface driver ftdi_sio
[ 865.050913] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 865.051415] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 865.051594] usb 6-2: Detected FT232RL
[ 865.051603] usb 6-2: Number of endpoints 2
[ 865.051611] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 865.051619] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 865.051626] usb 6-2: Setting MaxPacketSize 64
[ 865.053280] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 876.468944] usbserial: USB Serial deregistering driver cp210x
[ 876.469128] usbcore: deregistering interface driver cp210x
[ 879.139616] usbserial: USB Serial deregistering driver FTDI USB Serial
Device
[ 879.141600] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 879.141780] usbcore: deregistering interface driver ftdi_sio
[ 879.141962] ftdi_sio 6-2:1.0: device disconnected
[ 884.024151] usb 6-2: USB disconnect, device number 13
[ 898.164094] usb 6-2: new full-speed USB device number 14 using uhci_hcd
[ 898.728171] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 898.728184] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 898.728193] usb 6-2: Product: FT232R USB UART
[ 898.728200] usb 6-2: Manufacturer: FTDI
[ 898.728207] usb 6-2: SerialNumber: A9W9TBMV
[ 898.786148] usbcore: registered new interface driver ftdi_sio
[ 898.786296] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 898.786801] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 898.786968] usb 6-2: Detected FT232RL
[ 898.786977] usb 6-2: Number of endpoints 2
[ 898.786985] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 898.786993] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 898.787000] usb 6-2: Setting MaxPacketSize 64
[ 898.789573] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 949.517371] usbserial: USB Serial deregistering driver FTDI USB Serial
Device
[ 949.518070] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 949.518210] usbcore: deregistering interface driver ftdi_sio
[ 949.519399] ftdi_sio 6-2:1.0: device disconnected
[ 959.888070] usbserial: USB Serial deregistering driver generic
[ 959.888316] usbcore: deregistering interface driver usbserial_generic
[ 959.888464] usbcore: deregistering interface driver usbserial
[ 966.360200] usb 6-2: USB disconnect, device number 14
[ 971.064099] usb 6-2: new full-speed USB device number 15 using uhci_hcd
[ 971.629155] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 971.629169] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 971.629178] usb 6-2: Product: FT232R USB UART
[ 971.629185] usb 6-2: Manufacturer: FTDI
[ 971.629192] usb 6-2: SerialNumber: A9W9TBMV
[ 971.686522] usbcore: registered new interface driver usbserial
[ 971.686708] usbcore: registered new interface driver usbserial_generic
[ 971.686890] usbserial: USB Serial support registered for generic
[ 971.687838] usbcore: registered new interface driver ftdi_sio
[ 971.688273] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 971.688433] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 971.688514] usb 6-2: Detected FT232RL
[ 971.688517] usb 6-2: Number of endpoints 2
[ 971.688519] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 971.688522] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 971.688524] usb 6-2: Setting MaxPacketSize 64
[ 971.690186] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 1214.112160] usb 6-2: USB disconnect, device number 15
[ 1214.112786] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 1214.112957] ftdi_sio 6-2:1.0: device disconnected
[ 1215.692096] usb 6-2: new full-speed USB device number 16 using uhci_hcd
[ 1216.256286] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 1216.256300] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1216.256308] usb 6-2: Product: FT232R USB UART
[ 1216.256315] usb 6-2: Manufacturer: FTDI
[ 1216.256322] usb 6-2: SerialNumber: A9W9TBMV
[ 1216.310445] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 1216.310647] usb 6-2: Detected FT232RL
[ 1216.310656] usb 6-2: Number of endpoints 2
[ 1216.310665] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 1216.310672] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 1216.310679] usb 6-2: Setting MaxPacketSize 64
[ 1216.312449] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
--
Arkadiusz Miśkiewicz, arekm / maven.pl
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Please read the FAQ at http://www.tux.org/lkml/
Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and FT232RL,
one after disconnecting another.
After few cycles of reconnecting and using socat (below) I'm getting problems
accessing ttyUSB0:
ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial doesn't
help. I have to reboot to get ttyUSB0 working (regardless of which driver,
ftdio_sio or cp210x is handling ttyUSB0 - both stop working).
Any clues?
Device found:
[ 1215.692096] usb 6-2: new full-speed USB device number 16 using uhci_hcd
[ 1216.256286] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 1216.256300] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1216.256308] usb 6-2: Product: FT232R USB UART
[ 1216.256315] usb 6-2: Manufacturer: FTDI
[ 1216.256322] usb 6-2: SerialNumber: A9W9TBMV
[ 1216.310445] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 1216.310647] usb 6-2: Detected FT232RL
[ 1216.310656] usb 6-2: Number of endpoints 2
[ 1216.310665] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 1216.310672] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 1216.310679] usb 6-2: Setting MaxPacketSize 64
[ 1216.312449] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
and a problem with accessing ttyUSB0:
[root@t400 ~]# socat -ddd -s -u
/dev/ttyUSB0,raw,echo=0,b115200,crnl,noctty,nonblock - | logger
2013/01/18 23:14:25 socat[8095] E tcgetattr(3, 0x7fff09579470): Inappropriate
ioctl for device
2013/01/18 23:14:25 socat[8095] E tcgetattr(3, 0x7fff095793e0): Inappropriate
ioctl for device
2013/01/18 23:14:25 socat[8095] E tcgetattr(3, 0x7fff095795b0): Inappropriate
ioctl for device
which is:
munmap(0x7faf81706000, 4096) = 0
write(2, "2013/01/18 23:14:55 socat[8120] E tcgetattr(3, 0x7fffb70c6c40):
Inappropriate ioctl for device\n", 952013/01/18 23:14:55 socat[8120] E
tcgetattr(3, 0x7fffb70c6c40): Inappropriate ioctl for device
) = 95
ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6a70) = -1 ENOTTY (Inappropriate ioctl for device)
write(2, "2013/01/18 23:14:55 socat[8120] E tcgetattr(3, 0x7fffb70c6bb0):
Inappropriate ioctl for device\n", 952013/01/18 23:14:55 socat[8120] E
tcgetattr(3, 0x7fffb70c6bb0): Inappropriate ioctl for device
) = 95
ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
write(2, "2013/01/18 23:14:55 socat[8120] E tcgetattr(3, 0x7fffb70c6d80):
Inappropriate ioctl for device\n", 952013/01/18 23:14:55 socat[8120] E
tcgetattr(3, 0x7fffb70c6d80): Inappropriate ioctl for device
) = 95
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffb70c6f50) = -1 ENOTTY (Inappropriate ioctl for device)
select(4, [3], [1], [], NULL) = 2 (in [3], out [1])
kernel log:
[ 59.985654] tun: Universal TUN/TAP device driver, 1.6
[ 59.985658] tun: (C) 1999-2004 Max Krasnyansky <ma...@qualcomm.com>
[ 60.010608] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 60.014958] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 114.796110] usb 6-2: new full-speed USB device number 2 using uhci_hcd
[ 115.360163] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 115.360176] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 115.360184] usb 6-2: Product: FT232R USB UART
[ 115.360192] usb 6-2: Manufacturer: FTDI
[ 115.360199] usb 6-2: SerialNumber: A9W9TBMV
[ 115.423115] usbcore: registered new interface driver usbserial
[ 115.423468] usbcore: registered new interface driver usbserial_generic
[ 115.424272] usbserial: USB Serial support registered for generic
[ 115.429982] usbcore: registered new interface driver ftdi_sio
[ 115.430471] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 115.430970] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 115.431217] usb 6-2: Detected FT232RL
[ 115.431226] usb 6-2: Number of endpoints 2
[ 115.431234] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 115.431241] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 115.431249] usb 6-2: Setting MaxPacketSize 64
[ 115.434351] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 122.664151] usb 6-2: USB disconnect, device number 2
[ 122.665319] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 122.665552] ftdi_sio 6-2:1.0: device disconnected
[ 125.164067] usb 6-2: new full-speed USB device number 3 using uhci_hcd
[ 125.328152] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 125.328165] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 125.328173] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 125.328181] usb 6-2: Manufacturer: Silicon Labs
[ 125.328188] usb 6-2: SerialNumber: 0001
[ 125.342690] usbcore: registered new interface driver cp210x
[ 125.342846] usbserial: USB Serial support registered for cp210x
[ 125.342970] cp210x 6-2:1.0: cp210x converter detected
[ 125.452106] usb 6-2: reset full-speed USB device number 3 using uhci_hcd
[ 125.600719] usb 6-2: cp210x converter now attached to ttyUSB0
[ 158.376173] usb 6-2: USB disconnect, device number 3
[ 158.377385] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 158.377631] cp210x 6-2:1.0: device disconnected
[ 160.996090] usb 6-2: new full-speed USB device number 4 using uhci_hcd
[ 161.565156] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 161.565170] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 161.565179] usb 6-2: Product: FT232R USB UART
[ 161.565186] usb 6-2: Manufacturer: FTDI
[ 161.565193] usb 6-2: SerialNumber: A9W9TBMV
[ 161.616326] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 161.616523] usb 6-2: Detected FT232RL
[ 161.616533] usb 6-2: Number of endpoints 2
[ 161.616541] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 161.616549] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 161.616556] usb 6-2: Setting MaxPacketSize 64
[ 161.618363] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 172.264170] usb 6-2: USB disconnect, device number 4
[ 172.265361] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 172.265603] ftdi_sio 6-2:1.0: device disconnected
[ 175.868109] usb 6-2: new full-speed USB device number 5 using uhci_hcd
[ 176.032171] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 176.032184] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 176.032193] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 176.032200] usb 6-2: Manufacturer: Silicon Labs
[ 176.032207] usb 6-2: SerialNumber: 0001
[ 176.037429] cp210x 6-2:1.0: cp210x converter detected
[ 176.148083] usb 6-2: reset full-speed USB device number 5 using uhci_hcd
[ 176.296534] usb 6-2: cp210x converter now attached to ttyUSB0
[ 179.208158] usb 6-2: USB disconnect, device number 5
[ 179.209051] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 179.209186] cp210x 6-2:1.0: device disconnected
[ 181.432130] usb 6-2: new full-speed USB device number 6 using uhci_hcd
[ 181.998176] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 181.998189] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 181.998198] usb 6-2: Product: FT232R USB UART
[ 181.998205] usb 6-2: Manufacturer: FTDI
[ 181.998212] usb 6-2: SerialNumber: A9W9TBMV
[ 182.050340] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 182.050532] usb 6-2: Detected FT232RL
[ 182.050542] usb 6-2: Number of endpoints 2
[ 182.050550] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 182.050558] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 182.050565] usb 6-2: Setting MaxPacketSize 64
[ 182.052353] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 190.368207] usb 6-2: USB disconnect, device number 6
[ 190.368884] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 190.369019] ftdi_sio 6-2:1.0: device disconnected
[ 201.412081] usb 6-2: new full-speed USB device number 7 using uhci_hcd
[ 201.928646] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 201.928658] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 201.928666] usb 6-2: Product: FT232R USB UART
[ 201.928673] usb 6-2: Manufacturer: FTDI
[ 201.928680] usb 6-2: SerialNumber: A9W9TBMV
[ 201.975670] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 201.975954] usb 6-2: Detected FT232RL
[ 201.975963] usb 6-2: Number of endpoints 2
[ 201.975971] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 201.975979] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 201.975987] usb 6-2: Setting MaxPacketSize 64
[ 201.978420] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 208.720121] usb 6-2: USB disconnect, device number 7
[ 208.720744] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 208.720914] ftdi_sio 6-2:1.0: device disconnected
[ 212.752140] usb 6-2: new full-speed USB device number 8 using uhci_hcd
[ 212.911539] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 212.911550] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 212.911559] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 212.911567] usb 6-2: Manufacturer: Silicon Labs
[ 212.911574] usb 6-2: SerialNumber: 0001
[ 212.916700] cp210x 6-2:1.0: cp210x converter detected
[ 213.028104] usb 6-2: reset full-speed USB device number 8 using uhci_hcd
[ 213.172172] usb 6-2: cp210x converter now attached to ttyUSB0
[ 807.640161] usb 6-2: USB disconnect, device number 8
[ 807.641334] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 807.641577] cp210x 6-2:1.0: device disconnected
[ 810.640093] usb 6-2: new full-speed USB device number 9 using uhci_hcd
[ 811.208154] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 811.208167] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 811.208175] usb 6-2: Product: FT232R USB UART
[ 811.208183] usb 6-2: Manufacturer: FTDI
[ 811.208190] usb 6-2: SerialNumber: A9W9TBMV
[ 811.259306] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 811.259507] usb 6-2: Detected FT232RL
[ 811.259516] usb 6-2: Number of endpoints 2
[ 811.259524] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 811.259532] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 811.259539] usb 6-2: Setting MaxPacketSize 64
[ 811.262459] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 825.496159] usb 6-2: USB disconnect, device number 9
[ 825.496836] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 825.496998] ftdi_sio 6-2:1.0: device disconnected
[ 828.344083] usb 6-2: new full-speed USB device number 10 using uhci_hcd
[ 828.509148] usb 6-2: New USB device found, idVendor=10c4, idProduct=ea60
[ 828.509162] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 828.509170] usb 6-2: Product: CP2102 USB to UART Bridge Controller
[ 828.509178] usb 6-2: Manufacturer: Silicon Labs
[ 828.509185] usb 6-2: SerialNumber: 0001
[ 828.514331] cp210x 6-2:1.0: cp210x converter detected
[ 828.624117] usb 6-2: reset full-speed USB device number 10 using uhci_hcd
[ 828.773481] usb 6-2: cp210x converter now attached to ttyUSB0
[ 835.416141] usb 6-2: USB disconnect, device number 10
[ 835.418207] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 835.418419] cp210x 6-2:1.0: device disconnected
[ 837.176104] usb 6-2: new full-speed USB device number 11 using uhci_hcd
[ 837.742175] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 837.742190] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 837.742199] usb 6-2: Product: FT232R USB UART
[ 837.742206] usb 6-2: Manufacturer: FTDI
[ 837.742213] usb 6-2: SerialNumber: A9W9TBMV
[ 837.794292] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 837.794483] usb 6-2: Detected FT232RL
[ 837.794492] usb 6-2: Number of endpoints 2
[ 837.794500] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 837.794508] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 837.794515] usb 6-2: Setting MaxPacketSize 64
[ 837.796791] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 847.320187] usb 6-2: USB disconnect, device number 11
[ 847.320837] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 847.320997] ftdi_sio 6-2:1.0: device disconnected
[ 848.880117] usb 6-2: new full-speed USB device number 12 using uhci_hcd
[ 849.444245] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 849.444251] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 849.444254] usb 6-2: Product: FT232R USB UART
[ 849.444257] usb 6-2: Manufacturer: FTDI
[ 849.444259] usb 6-2: SerialNumber: A9W9TBMV
[ 849.496469] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 849.496672] usb 6-2: Detected FT232RL
[ 849.496681] usb 6-2: Number of endpoints 2
[ 849.496689] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 849.496697] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 849.496704] usb 6-2: Setting MaxPacketSize 64
[ 849.498442] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 858.650031] usbserial: USB Serial deregistering driver FTDI USB Serial
Device
[ 858.650574] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 858.650724] usbcore: deregistering interface driver ftdi_sio
[ 858.650915] ftdi_sio 6-2:1.0: device disconnected
[ 861.952207] usb 6-2: USB disconnect, device number 12
[ 864.480119] usb 6-2: new full-speed USB device number 13 using uhci_hcd
[ 864.992179] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 864.992192] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 864.992201] usb 6-2: Product: FT232R USB UART
[ 864.992208] usb 6-2: Manufacturer: FTDI
[ 864.992215] usb 6-2: SerialNumber: A9W9TBMV
[ 865.050749] usbcore: registered new interface driver ftdi_sio
[ 865.050913] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 865.051415] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 865.051594] usb 6-2: Detected FT232RL
[ 865.051603] usb 6-2: Number of endpoints 2
[ 865.051611] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 865.051619] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 865.051626] usb 6-2: Setting MaxPacketSize 64
[ 865.053280] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 876.468944] usbserial: USB Serial deregistering driver cp210x
[ 876.469128] usbcore: deregistering interface driver cp210x
[ 879.139616] usbserial: USB Serial deregistering driver FTDI USB Serial
Device
[ 879.141600] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 879.141780] usbcore: deregistering interface driver ftdi_sio
[ 879.141962] ftdi_sio 6-2:1.0: device disconnected
[ 884.024151] usb 6-2: USB disconnect, device number 13
[ 898.164094] usb 6-2: new full-speed USB device number 14 using uhci_hcd
[ 898.728171] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 898.728184] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 898.728193] usb 6-2: Product: FT232R USB UART
[ 898.728200] usb 6-2: Manufacturer: FTDI
[ 898.728207] usb 6-2: SerialNumber: A9W9TBMV
[ 898.786148] usbcore: registered new interface driver ftdi_sio
[ 898.786296] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 898.786801] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 898.786968] usb 6-2: Detected FT232RL
[ 898.786977] usb 6-2: Number of endpoints 2
[ 898.786985] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 898.786993] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 898.787000] usb 6-2: Setting MaxPacketSize 64
[ 898.789573] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 949.517371] usbserial: USB Serial deregistering driver FTDI USB Serial
Device
[ 949.518070] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 949.518210] usbcore: deregistering interface driver ftdi_sio
[ 949.519399] ftdi_sio 6-2:1.0: device disconnected
[ 959.888070] usbserial: USB Serial deregistering driver generic
[ 959.888316] usbcore: deregistering interface driver usbserial_generic
[ 959.888464] usbcore: deregistering interface driver usbserial
[ 966.360200] usb 6-2: USB disconnect, device number 14
[ 971.064099] usb 6-2: new full-speed USB device number 15 using uhci_hcd
[ 971.629155] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 971.629169] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 971.629178] usb 6-2: Product: FT232R USB UART
[ 971.629185] usb 6-2: Manufacturer: FTDI
[ 971.629192] usb 6-2: SerialNumber: A9W9TBMV
[ 971.686522] usbcore: registered new interface driver usbserial
[ 971.686708] usbcore: registered new interface driver usbserial_generic
[ 971.686890] usbserial: USB Serial support registered for generic
[ 971.687838] usbcore: registered new interface driver ftdi_sio
[ 971.688273] usbserial: USB Serial support registered for FTDI USB Serial
Device
[ 971.688433] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 971.688514] usb 6-2: Detected FT232RL
[ 971.688517] usb 6-2: Number of endpoints 2
[ 971.688519] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 971.688522] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 971.688524] usb 6-2: Setting MaxPacketSize 64
[ 971.690186] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
[ 1214.112160] usb 6-2: USB disconnect, device number 15
[ 1214.112786] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now
disconnected from ttyUSB0
[ 1214.112957] ftdi_sio 6-2:1.0: device disconnected
[ 1215.692096] usb 6-2: new full-speed USB device number 16 using uhci_hcd
[ 1216.256286] usb 6-2: New USB device found, idVendor=0403, idProduct=6001
[ 1216.256300] usb 6-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1216.256308] usb 6-2: Product: FT232R USB UART
[ 1216.256315] usb 6-2: Manufacturer: FTDI
[ 1216.256322] usb 6-2: SerialNumber: A9W9TBMV
[ 1216.310445] ftdi_sio 6-2:1.0: FTDI USB Serial Device converter detected
[ 1216.310647] usb 6-2: Detected FT232RL
[ 1216.310656] usb 6-2: Number of endpoints 2
[ 1216.310665] usb 6-2: Endpoint 1 MaxPacketSize 64
[ 1216.310672] usb 6-2: Endpoint 2 MaxPacketSize 64
[ 1216.310679] usb 6-2: Setting MaxPacketSize 64
[ 1216.312449] usb 6-2: FTDI USB Serial Device converter now attached to
ttyUSB0
--
Arkadiusz Miśkiewicz, arekm / maven.pl
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Greg Kroah-Hartman
Jan 18, 2013, 7:50:02 PM1/18/13
to
On Fri, Jan 18, 2013 at 11:28:43PM +0100, Arkadiusz Miskiewicz wrote:
> Hi.
>
> Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and FT232RL,
> one after disconnecting another.
>
> After few cycles of reconnecting and using socat (below) I'm getting problems
> accessing ttyUSB0:
> ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
> 0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
>
> Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial doesn't
> help. I have to reboot to get ttyUSB0 working (regardless of which driver,
> ftdio_sio or cp210x is handling ttyUSB0 - both stop working).
>
> Any clues?
The kernel log shows the device getting removed a bunch and then coming
> Hi.
>
> Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and FT232RL,
> one after disconnecting another.
>
> After few cycles of reconnecting and using socat (below) I'm getting problems
> accessing ttyUSB0:
> ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
> 0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
>
> Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial doesn't
> help. I have to reboot to get ttyUSB0 working (regardless of which driver,
> ftdio_sio or cp210x is handling ttyUSB0 - both stop working).
>
> Any clues?
back, which implies electrical issues (flaky connection, low power,
etc.) Are you really removing it and plugging it back in? Or is it
doing it all by itself?
Can you try better cables?
thanks,
greg k-h
Arkadiusz Miskiewicz
Jan 19, 2013, 3:20:01 AM1/19/13
to
On Saturday 19 of January 2013, Greg Kroah-Hartman wrote:
> On Fri, Jan 18, 2013 at 11:28:43PM +0100, Arkadiusz Miskiewicz wrote:
> > Hi.
> >
> > Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and
> > FT232RL, one after disconnecting another.
> >
> > After few cycles of reconnecting and using socat (below) I'm getting
> > problems accessing ttyUSB0:
> > ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
> > 0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
> >
> > Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial
> > doesn't help. I have to reboot to get ttyUSB0 working (regardless of
> > which driver, ftdio_sio or cp210x is handling ttyUSB0 - both stop
> > working).
> >
> > Any clues?
>
> The kernel log shows the device getting removed a bunch and then coming
> back, which implies electrical issues (flaky connection, low power,
> etc.) Are you really removing it and plugging it back in? Or is it
> doing it all by itself?
I was doing plug in CP2102, remove it, plug in FT232RL after few seconds,
> On Fri, Jan 18, 2013 at 11:28:43PM +0100, Arkadiusz Miskiewicz wrote:
> > Hi.
> >
> > Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and
> > FT232RL, one after disconnecting another.
> >
> > After few cycles of reconnecting and using socat (below) I'm getting
> > problems accessing ttyUSB0:
> > ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
> > 0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
> >
> > Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial
> > doesn't help. I have to reboot to get ttyUSB0 working (regardless of
> > which driver, ftdio_sio or cp210x is handling ttyUSB0 - both stop
> > working).
> >
> > Any clues?
>
> The kernel log shows the device getting removed a bunch and then coming
> back, which implies electrical issues (flaky connection, low power,
> etc.) Are you really removing it and plugging it back in? Or is it
> doing it all by itself?
remove it, plug in CP... (and various variations, several times) and testing
with socat before removing devices. After some iteration the problem appears
and only reboot helps.
Reproducible. suspend to ram/resume cycle didn't change anything, device still
has a problem, even after reconnection of device.
>
> thanks,
>
> greg k-h
Arkadiusz Miskiewicz
Jan 19, 2013, 3:50:01 AM1/19/13
to
On Saturday 19 of January 2013, Arkadiusz Miskiewicz wrote:
> On Saturday 19 of January 2013, Greg Kroah-Hartman wrote:
> > On Fri, Jan 18, 2013 at 11:28:43PM +0100, Arkadiusz Miskiewicz wrote:
> > > Hi.
> > >
> > > Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and
> > > FT232RL, one after disconnecting another.
> > >
> > > After few cycles of reconnecting and using socat (below) I'm getting
> > > problems accessing ttyUSB0:
> > > ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or
> > > TCGETS, 0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
> > >
> > > Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial
> > > doesn't help. I have to reboot to get ttyUSB0 working (regardless of
> > > which driver, ftdio_sio or cp210x is handling ttyUSB0 - both stop
> > > working).
> > >
> > > Any clues?
> >
> > The kernel log shows the device getting removed a bunch and then coming
> > back, which implies electrical issues (flaky connection, low power,
> > etc.) Are you really removing it and plugging it back in? Or is it
> > doing it all by itself?
>
> I was doing plug in CP2102, remove it, plug in FT232RL after few seconds,
> remove it, plug in CP... (and various variations, several times) and
> testing with socat before removing devices. After some iteration the
> problem appears and only reboot helps.
The issue is really weird. Machine is Thinkpad T400 2764CTO (latest bios).
> On Saturday 19 of January 2013, Greg Kroah-Hartman wrote:
> > On Fri, Jan 18, 2013 at 11:28:43PM +0100, Arkadiusz Miskiewicz wrote:
> > > Hi.
> > >
> > > Using 3.7.3 kernel and connecting two rs232 usb adapters, CP2102 and
> > > FT232RL, one after disconnecting another.
> > >
> > > After few cycles of reconnecting and using socat (below) I'm getting
> > > problems accessing ttyUSB0:
> > > ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or
> > > TCGETS, 0x7fffb70c6ae0) = -1 ENOTTY (Inappropriate ioctl for device)
> > >
> > > Unloading and reloading (by udev) modules ftdio_sio, cp210x, usbserial
> > > doesn't help. I have to reboot to get ttyUSB0 working (regardless of
> > > which driver, ftdio_sio or cp210x is handling ttyUSB0 - both stop
> > > working).
> > >
> > > Any clues?
> >
> > The kernel log shows the device getting removed a bunch and then coming
> > back, which implies electrical issues (flaky connection, low power,
> > etc.) Are you really removing it and plugging it back in? Or is it
> > doing it all by itself?
>
> I was doing plug in CP2102, remove it, plug in FT232RL after few seconds,
> remove it, plug in CP... (and various variations, several times) and
> testing with socat before removing devices. After some iteration the
> problem appears and only reboot helps.
When the problem happened on 3.7.3 today I rebooted into 3.8rc4 and ...
freshly after reboot and plugging in PL2303 adapter the problem was already
there. Didn't have to do unplug/plug cycle to make it happen.
Looks like sometimes reboot cures the problem, sometimes it doesn't. Now
powered off laptop and powered it on - problem gone.
Connected PL2303, ran socat, disconnected PL2303 (while socat was running) ->
problem happened again. Looks like it doesn't depend on adapter chip type.
So to reproduce here:
- boot fresh 3.8rc4
- plug in some adapter (PL2303 for example)
- run "socat -ddd -s -u /dev/ttyUSB0,raw,echo=0,b115200,crnl,noctty,nonblock -
| logger" - it should run fine, without any error
- disconnect adapter; socat should exit with error "W cannot restore terminal
settings on fd 3: Input/output error"
- plug in adapter again
- run socat again -> this time error "E tcgetattr(3, 0x7fff21411780):
Inappropriate ioctl for device" immediately always; regardless which adapter
is used and if kernel module drivers for these adapters were reloaded
dmesg:
http://pastebin.com/r1Q5mmgt
config:
http://pastebin.com/8dpFFzuU
lspci:
http://pastebin.com/TBtUg1tW
lsusb:
http://pastebin.com/SueVw9CD
[ 53.776047] usb 4-1: new full-speed USB device number 2 using uhci_hcd
[ 53.938053] usb 4-1: New USB device found, idVendor=067b, idProduct=2303
[ 53.938060] usb 4-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 53.938065] usb 4-1: Product: USB-Serial Controller
[ 53.938068] usb 4-1: Manufacturer: Prolific Technology Inc.
[ 53.949924] usbcore: registered new interface driver usbserial
[ 53.950364] usbcore: registered new interface driver usbserial_generic
[ 53.951147] usbserial: USB Serial support registered for generic
[ 53.954268] usbcore: registered new interface driver pl2303
[ 53.955009] usbserial: USB Serial support registered for pl2303
[ 53.955039] pl2303 4-1:1.0: pl2303 converter detected
[ 53.967394] usb 4-1: pl2303 converter now attached to ttyUSB0
[ 64.492122] usb 4-1: USB disconnect, device number 2
[ 64.501748] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 64.502343] pl2303 4-1:1.0: device disconnected
[ 66.494930] usb 4-1: new full-speed USB device number 3 using uhci_hcd
[ 66.654247] usb 4-1: New USB device found, idVendor=067b, idProduct=2303
[ 66.654261] usb 4-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 66.654269] usb 4-1: Product: USB-Serial Controller
[ 66.654276] usb 4-1: Manufacturer: Prolific Technology Inc.
[ 66.659661] pl2303 4-1:1.0: pl2303 converter detected
[ 66.671587] usb 4-1: pl2303 converter now attached to ttyUSB0
5722 munmap(0x7f1bfc0d7000, 4096) = 0
5722 write(2, "2013/01/19 09:36:38 socat[5722] E tcgetattr(3,
0x7fffeff64020): Inappropriate ioctl for device\n", 95) = 95
5722 ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffeff63e50) = -1 ENOTTY (Inappropriate ioctl for device)
5722 write(2, "2013/01/19 09:36:38 socat[5722] E tcgetattr(3,
0x7fffeff63f90): Inappropriate ioctl for device\n", 95) = 95
5722 ioctl(3, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffeff63ec0) = -1 ENOTTY (Inappropriate ioctl for device)
5722 write(2, "2013/01/19 09:36:38 socat[5722] E tcgetattr(3,
0x7fffeff64160): Inappropriate ioctl for device\n", 95) = 95
5722 fcntl(3, F_SETFD, FD_CLOEXEC) = 0
5722 ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x7fffeff64330) = -1 ENOTTY (Inappropriate ioctl for device)
5722 select(4, [3], [1], [], NULL) = 2 (in [3], out [1])
Woody Suwalski
Jan 19, 2013, 9:30:02 PM1/19/13
to
next plugin a new devnode ttyUSB1. It seems that you are trying to reuse
an old "dead" connection? Could it be rather a udev problem?
Woody
Arkadiusz Miskiewicz
Jan 20, 2013, 4:10:01 AM1/20/13
to
converter now attached to ttyUSB0"), not ttyUSB1, so it's not udev problem.
Also socat exits with error after unplugging (""W cannot restore
terminal settings on fd 3: Input/output error"") releasing ttyUSB0, so next
plug in should still use ttyUSB0.
Tried to reproduce the same problem on my PC and failed. On Thinkpad T400 I'm
reproducing without any problem.
> Woody
Arkadiusz Miskiewicz
Jan 20, 2013, 7:30:02 AM1/20/13
to
required few socat + disconnect + replug iterations.
Here it even reads some data all the time "sssATZATZ". ATZ came from minicom,
sss from my keyboard pressing but no clue where it got buffered now. Minicom is turned off,
not pressing "s" anymore, yet I can read that all the time using socat like this:
[root@serarm ~]# socat -ddd -s -u /dev/ttyUSB2,raw,echo=0,b115200,crnl,noctty,nonblock -
2013/01/20 13:19:10 socat[20565] E tcgetattr(3, 0x7fffca638660): Inappropriate ioctl for device
2013/01/20 13:19:10 socat[20565] E tcgetattr(3, 0x7fffca6385d0): Inappropriate ioctl for device
2013/01/20 13:19:10 socat[20565] E tcgetattr(3, 0x7fffca6387a0): Inappropriate ioctl for device
sssATZATZ# [root@serarm ~]# socat -ddd -s -u
/dev/ttyUSB2,raw,echo=0,b115200,crnl,noctty,nonblock -
2013/01/20 13:19:10 socat[20569] E tcgetattr(3, 0x7fffadc7cd20): Inappropriate ioctl for device
2013/01/20 13:19:10 socat[20569] E tcgetattr(3, 0x7fffadc7cc90): Inappropriate ioctl for device
2013/01/20 13:19:10 socat[20569] E tcgetattr(3, 0x7fffadc7ce60): Inappropriate ioctl for device
sssATZATZ# [root@serarm ~]# socat -ddd -s -u
/dev/ttyUSB2,raw,echo=0,b115200,crnl,noctty,nonblock -
2013/01/20 13:19:11 socat[20570] E tcgetattr(3, 0x7ffffafe2fd0): Inappropriate ioctl for device
2013/01/20 13:19:11 socat[20570] E tcgetattr(3, 0x7ffffafe2f40): Inappropriate ioctl for device
2013/01/20 13:19:11 socat[20570] E tcgetattr(3, 0x7ffffafe3110): Inappropriate ioctl for device
sssATZATZ#
dmesg:
[606931.578062] usb 4-4: new full-speed USB device number 51 using ohci_hcd
[606931.735206] usb 4-4: New USB device found, idVendor=067b, idProduct=2303
[606931.735223] usb 4-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[606931.735233] usb 4-4: Product: USB-Serial Controller
[606931.735241] usb 4-4: Manufacturer: Prolific Technology Inc.
[606931.738598] pl2303 4-4:1.0: pl2303 converter detected
[606931.759588] usb 4-4: pl2303 converter now attached to ttyUSB2
strace:
http://pastebin.com/wWq7EFkJ
(had 3 adapters in that E35MI system)
Tried to reproduce on third machine (Asus F2J notebook) but wasn't that lucky.
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