Resol VBus/USB adapter connected to Rasberry PI

[Eric Bosch]

I have connected my Resol VBus/USB adapter to the raspberry pi USB port (/dev/ttyACM0).

I am able to open this port with a Python script, but when I try to read from this port the pi does not receive anything. On a windows laptop it works fine and I can read the VBus packets with a Python script.

The other USB port (from the pi) is used for the Wifi dongle which is working fine.

What can be the problem here?

[Hardy Griech]

On 17.02.2014 21:30, Eric Bosch wrote:
:

> What can be the problem here?

:

Wrong setup of the port? For me the following is working:

/bin/stty -F /dev/ttyUSB0
1:0:bd:0:0:0:0:0:0:0:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0

Hardy


PS: fetch current setup with "stty -g -F /dev/ttyUSB0"

[Erwann Penet]

Hi,

If the USB adapter appears on ACM0, then it is probably using a wrong driver.

On my RPI, I have to issue the following commands to set it on the correct port:

• rmmod -f cdc_acm
• rmmod -f ftdi_sio
• rmmod -f usbserial
• modprobe usbserial vendor=0x1fef product=0x2018
• modprobe ftdi_sio

After running these commands, the device appears on dev/ttyUSB0 and works fine.

Also, I am not sure why but I sometimes have to unplug and replug the USB device after a reboot...

Regards,

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[Hardy Griech]

On 18.02.2014 08:01, Erwann Penet wrote:
:

> Also, I am not sure why but I sometimes have to unplug and replug the
> USB device after a reboot...

:

Cannot say anything about this, but here is my configuration:

root@qnap110:/etc# lsusb
Bus 001 Device 003: ID 0403:6001 Future Technology Devices
International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@qnap110:/etc# lsusb -t
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=orion-ehci/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 4: Dev 3, If 0, Class=Vendor Specific Class,
Driver=ftdi_sio, 12M

My dmesg says:

[ 14.162147] usb 1-1.4: new full-speed USB device number 3 using
orion-ehci
[ 14.272412] usb 1-1.4: New USB device found, idVendor=0403,
idProduct=6001
[ 14.279398] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 14.286793] usb 1-1.4: Product: VBus\xffffffc2\xffffffae\xffffffae
to USB
[ 14.291279] usb 1-1.4: Manufacturer: RESOL
[ 14.295411] usb 1-1.4: SerialNumber: RSS3UGWQ
[ 14.411594] usbcore: registered new interface driver usbserial
[ 14.419784] usbcore: registered new interface driver usbserial_generic
[ 14.435220] usbserial: USB Serial support registered for generic
[ 14.481541] usbcore: registered new interface driver ftdi_sio
[ 14.488736] usbserial: USB Serial support registered for FTDI USB
Serial Device
[ 14.506937] ftdi_sio 1-1.4:1.0: FTDI USB Serial Device converter detected
[ 14.521372] usb 1-1.4: Detected FT232RL
[ 14.525281] usb 1-1.4: Number of endpoints 2
[ 14.529590] usb 1-1.4: Endpoint 1 MaxPacketSize 64
[ 14.534427] usb 1-1.4: Endpoint 2 MaxPacketSize 64
[ 14.539257] usb 1-1.4: Setting MaxPacketSize 64
[ 14.590824] usb 1-1.4: FTDI USB Serial Device converter now attached
to ttyUSB0

Check your dmesg in case of non-detection. Is the remainder of the USB
detection working reliably?

Hardy

[Eric Bosch]

Hi,

This works fine. Thanks for your help!!

Regards,

Eric

Op dinsdag 18 februari 2014 08:01:24 UTC+1 schreef FestivalsFrancais.com: