Hi guys,
I am trying to debug an eGalax touchpad in my embedded system. What's
strange is that the "evtest" method doesn't react when I'm touching
(see below). I'm not sure the touchpas is alive, so I can't tell if
it's HW or SW.
Could anyone with experience on this kind of debug help me with a test
procedure ? I don't know what to look to identify my problem.
root@(ubiquity)():~# evtest /dev/input/event4
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0xeef product 0x1 version 0x210
Input device name: "eGalax Inc. USB TouchController"
Supported events:
Event type 0 (Sync)
Event type 1 (Key)
Event code 330 (Touch)
Event type 3 (Absolute)
Event code 0 (X)
Value 0
Min 0
Max 4095
Event code 1 (Y)
Value 0
Min 0
Max 4095
Event code 47 (?)
Value 0
Min 0
Max 7
Event code 53 (?)
Value 0
Min 0
Max 4095
Event code 54 (?)
Value 0
Min 0
Max 4095
Event code 57 (?)
Value 0
Min 0
Max 65535
Testing ... (interrupt to exit)
More details on my setup below :
The kernel should have recognized the device :
[ 1.635292] hub 3-0:1.0: port 2, status 0101, change 0001, 12 Mb/s
[ 1.641396] usbtouchscreen 2-2:1.0: usb_probe_interface
[ 1.641408] usbtouchscreen 2-2:1.0: usb_probe_interface - got id
[ 1.641799] usbcore: registered new interface driver usbtouchscreen
[ 1.645880] usbhid 2-2:1.0: usb_probe_interface
[ 1.645891] usbhid 2-2:1.0: usb_probe_interface - got id
[ 1.650539] usbcore: registered new interface driver usbhid
[ 1.650545] usbhid: USB HID core driver
[ 1.659604] input: eGalax Inc. USB TouchController Pen as
/devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input3
[ 1.660740] input: eGalax Inc. USB TouchController as
/devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input4
[ 1.661541] usbhid 2-2:1.0: looking for a minor, starting at 96
[ 1.662614] hid-multitouch 0003:0EEF:0001.0001:
input,hiddev0,hidraw0: USB HID v2.10 Pointer [eGalax Inc. USB
TouchController] on usb-0000:00:1d.0-2/input0
The "usbtouchpad" driver is loaded :
root@(ubiquity)():~# lsmod
Module Size Used by
sja1000_isa 2821 0
sja1000 5206 1 sja1000_isa
can_dev 6395 1 sja1000
ard_usb 6911 0
hid_multitouch 8637 0
usbhid 32470 0
usbtouchscreen 11076 0
i915 511371 1
drm_kms_helper 23402 1 i915
drm 185361 2 i915,drm_kms_helper
cfbcopyarea 2714 1 i915
i2c_algo_bit 4336 1 i915
video 9818 1 i915
cfbimgblt 1947 1 i915
cfbfillrect 3142 1 i915
The device is listed (it's still a mystery why the touchpad appears 2
times as a pen and as a device) :
---------------------------------------------------------------------------------------
root@(ubiquity)():~# cat /proc/bus/input/devices
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input0
U: Uniq=
H: Handlers=kbd event0
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0
I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0
I: Bus=0010 Vendor=001f Product=0001 Version=0100
N: Name="PC Speaker"
P: Phys=isa0061/input0
S: Sysfs=/devices/platform/pcspkr/input/input2
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=40001
B: SND=6
I: Bus=0003 Vendor=0eef Product=0001 Version=0210
N: Name="eGalax Inc. USB TouchController Pen"
P: Phys=usb-0000:00:1d.0-2/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input3
U: Uniq=
H: Handlers=mouse0 event3
B: PROP=0
B: EV=1b
B: KEY=c01 0 0 0 0 0 0 0 0 0 0
B: ABS=3
B: MSC=10
I: Bus=0003 Vendor=0eef Product=0001 Version=0210
N: Name="eGalax Inc. USB TouchController"
P: Phys=usb-0000:00:1d.0-2/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input4
U: Uniq=
H: Handlers=mouse1 event4
B: PROP=2
B: EV=b
B: KEY=400 0 0 0 0 0 0 0 0 0 0
B: ABS=2608000 3
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