[Freedreno] HP-TouchPad , touchscreen driver

[vinay simha]

andreas,

could you please send the /var/log/Xorg.0.log. I want to check the traces
of evdev

Regards,
vinay simha

On Thu, Nov 13, 2014 at 5:11 PM, vinay simha <
vinaysimha at inforcecomputing.com> wrote:

> andreas,
>
> Driver "evdev" maps somehow to the  Atmel touchpad (kernel driver)
> Do you have atmel touchpad driver sources. is it available in any
> repo/github?
> Did you add any specific .conf in /usr/share/X11/xorg.conf.d/ for atmel
> touchpad
>
> Regards,
> vinay simha
>
> On Thu, Nov 13, 2014 at 5:00 PM, Andreas Färber <afaerber at suse.de> wrote:
>
>> Vinay,
>>
>> The touchpad is in fact I2C-connected on HP Chromebook 11 - that's an
>> Exynos5 based ARM netbook, not a regular notebook.
>>
>> I noticed that openSUSE 13.2 ships the following default configuration:
>>
>> Section "InputClass"
>>         Identifier "evdev pointer catchall"
>>         MatchIsPointer "on"
>>         MatchDevicePath "/dev/input/event*"
>>         Driver "evdev"
>> EndSection
>>
>> Section "InputClass"
>>         Identifier "evdev keyboard catchall"
>>         MatchIsKeyboard "on"
>>         MatchDevicePath "/dev/input/event*"
>>         Driver "evdev"
>> EndSection
>>
>> Section "InputClass"
>>         Identifier "evdev touchpad catchall"
>>         MatchIsTouchpad "on"
>>         MatchDevicePath "/dev/input/event*"
>>         Driver "evdev"
>> EndSection
>>
>> Section "InputClass"
>>         Identifier "evdev tablet catchall"
>>         MatchIsTablet "on"
>>         MatchDevicePath "/dev/input/event*"
>>         Driver "evdev"
>> EndSection
>>
>> Section "InputClass"
>>         Identifier "evdev touchscreen catchall"
>>         MatchIsTouchscreen "on"
>>         MatchDevicePath "/dev/input/event*"
>>         Driver "evdev"
>> EndSection
>>
>> Cheers,
>> Andreas
>>
>> Am 13.11.2014 um 12:00 schrieb vinay simha:
>> > Andreas,
>> >
>> > In hp chromebook the way touchscreen is added would be different, it
>> > will be either USB(hid) based touchscreen. In general laptops will have
>> > usb(hid) touchscreens. Default linux drivers and x11 supports that.
>> >
>> > For mobiles it will be having mipi dsi(for display) interfaces and uses
>> > i2c/spi interface for touchscreen. Android have it's own framework to
>> > handle the touchscreens.
>> >
>> > Regards,
>> > vinay simha
>> >
>> > On Wed, Nov 12, 2014 at 9:18 PM, vinay simha
>> > <vinaysimha at inforcecomputing.com
>> > <mailto:vinaysimha at inforcecomputing.com>> wrote:
>> >
>> >     added the respective driver of himax controller(based on i2c), to
>> >     link this with x11 added the 69-himaxtouch.conf
>> >
>> >     root at linaro-gnome:~# more
>> /usr/share/X11/xorg.conf.d/69-himaxtouch.conf
>> >     Section "InputClass"
>> >               Identifier  "himax-touchscreen"
>> >               Driver      "evdev"
>> >               #Driver      "himax8526a"
>> >               Option      "Type" "finger"
>> >               Option      "Device" "/dev/input/event1"
>> >               Option      "ScreenNo" "0"
>> >               Option      "MinimumXPosition" "0"
>> >               Option      "MaximumXPosition" "480"
>> >               Option      "MinimumYPosition" "0"
>> >               Option      "MaximumYPosition" "864"
>> >               Option      "Calibration" "0 480 0 864"
>> >     EndSection
>> >
>> >     When i touch the screen(cursor doesnt move accordigly) dmesg logs
>> >     pmic8xxx_pwrkey: Attempted to start touch without x/y (driver bug)
>> >
>> >     i do get responses to "cat /dev/input/event1"
>> >     cat /proc/bus/input/devices
>> >
>> >     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>> >     N: Name="himax-touchscreen"
>> >     P: Phys=
>> >     S: Sysfs=/devices/virtual/input/input1
>> >     U: Uniq=
>> >     H: Handlers=event1 cpufreq
>> >     B: PROP=2
>> >     B: EV=b
>> >     B: KEY=400 0 0 0 0 0 0 0 0 0 0
>> >     B: ABS=2650000 10000000
>> >
>> >
>> >     Regards,
>> >     vinay simha
>> >
>> >     On Wed, Nov 12, 2014 at 8:41 PM, Rob Clark <robdclark at gmail.com
>> >     <mailto:robdclark at gmail.com>> wrote:
>> >
>> >         I don't really remember myself, but maybe someone else does.
>> >         But IIRC
>> >         the touchpad had some goofy userspace driver.
>> >
>> >         I'm not an input expert, but I think if the touchscreen driver
>> used
>> >         normal kernel evdev stuff, x11 should automatically detect it.
>> At
>> >         least on desktop/x86 that stuff should be plug-and-play.
>> >
>> >         BR,
>> >         -R
>> >
>> >         On Wed, Nov 12, 2014 at 4:32 AM, vinay simha
>> >         <vinaysimha at inforcecomputing.com
>> >         <mailto:vinaysimha at inforcecomputing.com>> wrote:
>> >         > HI,
>> >         >
>> >         > What is the .conf used for touchscreen driver  for
>> hp-touchpad ,
>> >         > usr/share/X11/xorg.conf.d/
>> >         >
>> >         > Is there any separate .conf used in /etc/X11/xorg.conf.d/ for
>> >         hp-touchpad
>> >         >
>> >         > Regards,
>> >         > vinay simha
>> >         >
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>> >         >
>> >
>> >
>> >
>>
>>
>> --
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>>
>
>
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