Il 22/05/2015 04:03, Peter Hutterer ha scritto:
On Thu, May 21, 2015 at 04:37:13PM +0200, Marco Cavallini wrote:
Hello,
I am working on an ARM board
I can see touchscreen events from /dev/input/touchscreen0
I have some problems to understand the different touchscreen results between
ts_* and evdev
For example ts_calibrate works, but xinput_calibrator not because the second
touch have the same XY
I noticed that using evdev I always have fixed XY values, for example
calling "xinput test"
Am I misconfiguring anything?
I take it touchscreen0 is a symlink to some eventX device, so they speak the
same protocol?
what does evtest or evemu-record say about the output?
Cheers,
Peter
Hi Peter,
thank you for answering.
The evtest returns values between ~4600 to ~7800
I touched min XY and max XY points.
xinput test returns always 4095.
Wat am I missing?
Thank you
# ls -al /dev/input/
drwxr-xr-x 3 root root 140 Jan 1 1970 .
drwxr-xr-x 11 root root 2960 May 20 15:09 ..
drwxr-xr-x 2 root root 60 Jan 1 1970 by-path
crw-r----- 1 root root 13, 64 Jan 1 1970 event0
crw-r----- 1 root root 13, 63 Jan 1 1970 mice
crw-r----- 1 root root 13, 32 Jan 1 1970 mouse0
lrwxrwxrwx 1 root root 6 Jan 1 1970 touchscreen0 ->
event0
# evtest /dev/input/event0
Input driver version is 1.0.1
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0
Input device name: "ADS7843 Touchscreen"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 330 (BTN_TOUCH)
Event type 3 (EV_ABS)
Event code 0 (ABS_X)
Value 0
Min 0
Max 4095
Event code 1 (ABS_Y)
Value 0
Min 0
Max 4095
Event code 24 (ABS_PRESSURE)
Value 0
Min 0
Max 0
Properties:
Testing ... (interrupt to exit)
Event: time 1432134717.482451, type 1 (EV_KEY), code 330 (BTN_TOUCH),
value 1
Event: time 1432134717.482451, type 3 (EV_ABS), code 0 (ABS_X), value 4637
Event: time 1432134717.482451, type 3 (EV_ABS), code 1 (ABS_Y), value 4299
Event: time 1432134717.482451, type 3 (EV_ABS), code 24 (ABS_PRESSURE),
value 32768
Event: time 1432134717.482451, -------------- EV_SYN ------------
Event: time 1432134717.491145, type 1 (EV_KEY), code 330 (BTN_TOUCH),
value 0
Event: time 1432134717.491145, type 3 (EV_ABS), code 24 (ABS_PRESSURE),
value 0
Event: time 1432134717.491145, -------------- EV_SYN ------------
Event: time 1432134719.652423, type 1 (EV_KEY), code 330 (BTN_TOUCH),
value 1
Event: time 1432134719.652423, type 3 (EV_ABS), code 0 (ABS_X), value 7823
Event: time 1432134719.652423, type 3 (EV_ABS), code 1 (ABS_Y), value 7987
Event: time 1432134719.652423, type 3 (EV_ABS), code 24 (ABS_PRESSURE),
value 32768
Event: time 1432134719.652423, -------------- EV_SYN ------------
Event: time 1432134719.663012, type 3 (EV_ABS), code 0 (ABS_X), value 7820
Event: time 1432134719.663012, -------------- EV_SYN ------------
Event: time 1432134719.672662, type 3 (EV_ABS), code 0 (ABS_X), value 7813
Event: time 1432134719.672662, type 3 (EV_ABS), code 1 (ABS_Y), value 7985
Event: time 1432134719.672662, -------------- EV_SYN ------------
Event: time 1432134719.682753, type 3 (EV_ABS), code 0 (ABS_X), value 7805
Event: time 1432134719.682753, type 3 (EV_ABS), code 1 (ABS_Y), value 7961
Event: time 1432134719.682753, -------------- EV_SYN ------------
Event: time 1432134719.691162, type 1 (EV_KEY), code 330 (BTN_TOUCH),
value 0
Event: time 1432134719.691162, type 3 (EV_ABS), code 24 (ABS_PRESSURE),
value 0
# xinput test 6
motion a[0]=4095 a[1]=4095 a[2]=32768
button press 1
motion a[0]=4095 a[1]=4095
motion a[0]=4095 a[1]=4095
motion a[0]=4095 a[1]=4095
motion a[0]=4095 a[1]=4095
Cordiali Saluti / Kindest Regards / Mit freundlichen Grüßen
--
Marco Cavallini | KOAN sas | Bergamo - Italia
embedded and real-time software engineering
Phone:+39-035-255.235 - Fax:+39-178-22.39.748
http://www.KoanSoftware.com
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