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Jan 15, 2010 12:35am
User_img_not_found_06_med tapratt 7 posts

I am trying to get a USB keyboard to send input to the xserver using the VonHippel module.  I am following a thread on the mailing list that explains how to do it, but I’m not having much luck.  I have removed the two modules he said g_ether and arcotg_udc and ehci_hcd is loaded.  The keyboard does get recognized and the keyboard modules get auto loaded.  I have also stopped one of the xservers, so only the one on display 0 is running, but I still get no input from the keyboard.


Thanks in advance for any help!


Jan 22, 2010 11:55am
Medium Bug Labs team kgilmer 215 posts

Hi Todd,

  I tried to attach a keyboard to my BUG and it seems the device itself is recognized:

[ 2772.000000] usb 1-1.1: new low speed USB device using fsl-ehci and address 6 [ 2772.140000] usb 1-1.1: configuration #1 chosen from 1 choice [ 2772.200000] input: Dell Dell USB Keyboard as /class/input/input11 [ 2772.270000] input: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-fsl-ehci.0-1.1 [ 2772.290000] usb 1-1.1: New USB device found, idVendor=413c, idProduct=2105 [ 2772.300000] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2772.330000] usb 1-1.1: Product: Dell USB Keyboard [ 2772.330000] usb 1-1.1: Manufacturer: Dell

But I am also unable to get the Xserver to use the device.  After some googling I found that (most likely) our version of kdrive is not setup to handle hotplug input devices.  This will likely change in the next release of BUG software, but if it’s important to you please create a bugzilla for this feature request.  Also if you find a workaround we’d love to hear about it :)



Jan 23, 2010 3:35pm
User_img_not_found_06_med tapratt 7 posts

Hi Ken,

Thanks for looking into this for me.  That was the exact behavior I was seeing.  The device was being recognized:

[42949529.590000] usb 1-1.2: New USB device found, idVendor=413c, idProduct=2003 [42949529.590000] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [42949529.610000] usb 1-1.2: Product: Dell USB Keyboard [42949529.610000] usb 1-1.2: Manufacturer: Dell [42949529.690000] usbhid 1-1.2:1.0: usb_probe_interface [42949529.690000] usbhid 1-1.2:1.0: usb_probe_interface - got id [42949529.700000] input: Dell Dell USB Keyboard as /class/input/input9 [42949529.750000] usb 1-1.2: link qh16-0601/ffbae300 start 15 [1/2 us] [42949529.780000] input: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-fsl-ehci.0-1.2 [42949529.790000] usbcore: registered new interface driver usbhid [42949529.800000] usbhid: v2.6:USB HID core driver [42949529.820000] usbcore: registered new interface driver usbkbd [42949529.830000] usbkbd: :USB HID Boot Protocol keyboard driver

The device node was being created:  /dev/input/eventX

more /proc/bus/input/devices

I: Bus=0003 Vendor=413c Product=2003 Version=0110 N: Name="Dell Dell USB Keyboard" P: Phys=usb-fsl-ehci.0-1.2/input0 S: Sysfs=/class/input/input9 U: Uniq= H: Handlers=kbd event9 B: EV=120013 B: KEY=10000 7 ff9f207a c14057ff febeffdf ffefffff ffffffff fffffffe B: MSC=10 B: LED=7

But using cat /dev/input/eventX  while pressing keys showed that no keyboard events were being sent to this file.

Looking through the bug build scripts I found that they did apply a patch to their version of kdrive to use the evdev input driver for X, which should allow the hotplugging of input devices.  To enable it you have to add -use-evdev to your Xserver arguments.  After trying this I experienced the same behavior exept I could get the Num Lock and Cap Lock LED’s to light up.  If I find a solution or workaround I will make sure to let you know.


Thanks Again,



Jan 25, 2010 10:42am
Medium Bug Labs team jconnolly 285 posts

Hi Todd, try this.  I’ve gotten it to work:

vi /etc/X11/Xserver, comment out line 27 (ARGS=$ARGS vt01)


also change lines 54 and 56 to look something like:

exec xinit /etc/X11/Xsession—$XSERVER $DISPLAY0 -fb /dev/fb1 $ARGS vt02 …...


exec xinit /etc/X11/Xsession—$XSERVER $DISPLAY0 -fb /dev/fb1 $ARGS vt01 …...

To test it out, try:

export DISPLAY=:0.0



and try typing.  You might have to swap the LCD or vt params to get the input to the Xserver of your choice.


Jan 29, 2010 11:55pm
User_img_not_found_06_med tapratt 7 posts

Hi John,

Yes I tried what you suggested and it also worked for me.  I then attached a barcode scanner and it was also recoginized as a HID device by the kernel just like the keyboard and I was able to have the Xserver accept input from it too, which was my goal in the first place.

Thank you both for your help,  you guys are awesome.


Mar 31, 2010 12:56am
User_img_not_found_06_med tapratt 7 posts


I needs some more help.  I could get the keyboard to work, but only on slot 3.  I would like to get it working on slot 0 if possible, because I plan on using the multi-function buttons along with the screen.  To get the Xserver to accept keyboard input I edited the virtual terminal arguments for the Xserver and I had to comment out one instance from starting.  Here are the last few lines of my Xserver config when it works on slot 3

#TSLIB_TSDEVICE=/dev/input/bmi_lcd_ts4 #exec xinit /etc/X11/Xsession -- $XSERVER $DISPLAY0 -fb /dev/fb1 $ARGS vt01 $*& TSLIB_TSDEVICE=/dev/input/bmi_lcd_ts5 exec xinit /etc/X11/Xsession -- $XSERVER $DISPLAY1 -fb /dev/fb2 $ARGS vt02 $*

If I uncomment both of them, then I can not get keyboard input on any slot and switching them so the first Xserver gets started doesn’t work either.

I would appreciate any help you can give.


Thanks in advance.


Mar 31, 2010 3:16pm
Medium GNUtoo 10 posts

hi here’s my config:


. /etc/formfactor/config

# note xinit needs full server path
if [ -f /usr/bin/Xfbdev ]; then
if [ -f /usr/bin/Xepson ]; then
if [ -f /usr/bin/Xorg ]; then
if [ -f /usr/bin/Xomap ]; then

. /etc/profile

export USER=root

ARGS=” -br -pn -hide-cursor -s 0”
ARGS=”$ARGS -mouse tslib”
#ARGS=”$ARGS vt01”

# use ucb 1×00 touchscreen if present
if [ -z ”$TSLIB_TSDEVICE” ] && [ -e /dev/touchscreen/ucb1×00 ]; then
  ARGS=”$ARGS -mouse /dev/touchscreen/ucb1×00”

# use usb mouse if present
# Xorg doesn’t support ”-mouse” option, and uses /dev/input/mice automatically
if [ -z ”$TSLIB_TSDEVICE” ] && [ -e /dev/input/mice ] && [ ”$XSERVER” != “Xorg” ]; then
  ARGS=”$ARGS -mouse /dev/input/mice”


if [ ! -z ”$DISPLAY_DPI” ]; then

if [ ! -z ”$DISPLAY_SUBPIXEL_ORDER” ]; then

exec xinit /etc/X11/Xsession—$XSERVER $DISPLAY0 -fb /dev/fb1 $ARGS $&

#exec xinit /etc/X11/Xsession—$XSERVER $DISPLAY1 -fb /dev/fb2 $ARGS $


you could notice that the lines with /dev/fb1 are uncommented while the lines with /dev/fb2 are commented

That is because /dev/fb1 goes to slot0 and /dev/fb2 goes to slot1

if you wonder where /dev/fb0 goes,it goes to the bugbase small monochrome display.

Note that #ARGS=”$ARGS vt01” is also commented


Apr 1, 2010 12:33am
User_img_not_found_06_med tapratt 7 posts

Hi Denis,

Thanks for the help.  I made those changes to my Xserver config and got the keyboard to work on slot 0 a few times.  I’m still having the same problem where I start up my bug and the bug view module doesn’t display anything but the backlight is on, sometimes I can get it to work by removing the module and plugging it back into the slot.  Other times it will display, but I can’t do anything because the touch screen won’t respond.  I checked the conierge log and syslog, but I’m not getting any error messages or anything out of the ordinary.  Kind of sounds like a hardware issue to me, but I had just returned my last bug for the same problem.  What do you think?


Thanks again for the help


Apr 1, 2010 2:06pm
Medium GNUtoo 10 posts

I had hardware issues like you describe too,

But it could also be something else like:

Dust,preventing the Bug module to connect properly

Bad connection,that is to say the screen is not connected/inserted properly in the bug-base


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