On 08/28/2013 12:08 PM, Fabio Estevam wrote:
On Wed, Aug 28, 2013 at 4:03 PM, Sandoval Zazueta Francisco-B20593
<[email protected]> wrote:
Hello!
I found a thread looking around on touch screen working with community
yocto:
http://comments.gmane.org/gmane.linux.embedded.yocto.meta-freescale/62
I'm trying to get touch to work with the same display on master. Did you
figure out the issue? I compiled the kernel with p1003 and irq_set_irq_type.
It compiles but touch still doesn't work.
I have no idea what a p1003 is. It's not used on our WVGA display.
evtest gives the following output:
root@imx6qsabreauto:~# evtest /dev/input/event0
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "gpio-keys"
event0 is monitors 'gpio-keys', ot the touchscreen.
gpio-keys isn't a touch-screen. It's a driver for a GPIO button board
and delivers keys POWER/HOME/BACK/VOL+-. It's mostly useful for Android
on small displays.
http://boundarydevices.com/products/nit6x_android/
Have you tried other eventX? Do you see the touchscreen driver to
probe in dmesg?
Our kernel configurations have included support for this touch
screen (TSC2004) since "the beginning" of i.MX6 support:
CONFIG_TOUCHSCREEN_TSC2004=y
Can you double-check your kernel config?
zcat /proc/config.gz | grep TSC2004
You can also check for connectivity to the I2C device under
U-Boot:
U-Boot > i2c dev 2
Setting bus to 2
U-Boot > i2c probe
Valid chip addresses: 48
As shown, the TSC2004 is on I2C bus 2 (I2C3 for the hardware folks),
and is at address 0x48.
Regards,
Eric
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