USB on hummingboard i2ex

[lich0...@gmail.com]

Hi

geexbox-devel-20141027-r92913ab.cuboxi.img boots successfully on my hummingboard

However, as soon as I connect an USB stick, it becomes unusable. Messages appear constantly about a USB mass storage device being connected/disconnected.

Is this a known problem?
Can I provide any more information?

Best
Oliver

[Thomas Genty]

Le 31/10/2014 12:46, lich0...@gmail.com a écrit :
> Hi
>
Hello,

> geexbox-devel-20141027-r92913ab.cuboxi.img boots successfully on my
> hummingboard
>
> However, as soon as I connect an USB stick, it becomes unusable.
> Messages appear constantly about a USB mass storage device being
> connected/disconnected.

what partitions are used on this stick ?
ntfs, something else ? which size ?

>
> Is this a known problem?

on external disk with capacity > 500GB, using ntfs partition, it was a
problem.

> Can I provide any more information?

dmesg logs to begin ;)
>
> Best

B.R

Tom
> Oliver
>
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[lich0...@gmail.com]

Am Samstag, 1. November 2014 22:53:01 UTC+1 schrieb tomlohave tomlohave:

Le 31/10/2014 12:46, lich0...@gmail.com a écrit :
> Hi
>
Hello,

what partitions are used on this stick ?
ntfs, something else ? which size ?

 It's a 64GB Corsair HyperX Stick, formated as NTFS. But it happens with other sticks as well, inclunding a 4GB one formated in FAT32.

dmesg logs to begin ;)

How to I get to vt2? Ctrl + Alt + F2 does not work...

Oliver

[lich0...@gmail.com]

When I plug it in I get through the serial console:

 usb 2-1.1: USB disconnect, device number 9
usb 2-1.1: new high-speed USB device number 10 using ci_hdrc
usb-storage 2-1.1:1.0: USB Mass Storage device detected
scsi4 : usb-storage 2-1.1:1.0
scsi 4:0:0:0: Direct-Access     Kingston DT HyperX 3.0    PMAP PQ: 0 ANSI: 6
sd 4:0:0:0: [sdb] 123469824 512-byte logical blocks: (63.2 GB/58.8 GiB)
sd 4:0:0:0: [sdb] Write Protect is off
sd 4:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
 sdb: sdb1
sd 4:0:0:0: [sdb] Attached SCSI removable disk

dmesg:

Booting Linux on physical CPU 0x0
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Initializing cgroup subsys cpuacct
Linux version 3.14.14 (geexbox@SolidRun-PC) (gcc version 4.8.3 20140401 (prerel$
CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: SolidRun HummingBoard Dual/Quad
cma: CMA: reserved 256 MiB at 40000000
Memory policy: Data cache writealloc
On node 0 totalpages: 262144
free_area_init_node: node 0, pgdat 808d1fc0, node_mem_map af779000
  DMA zone: 2048 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 262144 pages, LIFO batch:31
PERCPU: Embedded 8 pages/cpu @af758000 s8640 r8192 d15936 u32768
pcpu-alloc: s8640 r8192 d15936 u32768 alloc=8*4096
pcpu-alloc: [0] 0 [0] 1
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096

As long as hdmi is connected, I get:

HDMI link connected
mxc_hdmi 20e0000.hdmi_video: mxc_hdmi_read_edid HDMI in DVI mode
mxc_hdmi 20e0000.hdmi_video: same edid

again and again, so I can't really use the serial console while hdmi is connected.

[lich0...@gmail.com]

Solved!

The problem was the USB Type A to USB micro cable.
The power supply was fine but the cable's wires were too thin to carry the current.

Cheers
Oliver