Difference between revisions of "IoTGateway/BSP/Android/Gettingstarted/How to configure Capacitive Multi-touch Display"
From ESS-WIKI
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|} | |} | ||
− | + | I2C interface | |
+ | |||
+ | *Enable I2C bus in menuconfig | ||
+ | <pre>Device drivers ---> | ||
+ | I2C support ---> | ||
+ | <*> I2C support | ||
+ | [*] Enable compatibility bits for old user-space | ||
+ | <*> I2C device interface | ||
+ | <*> I2C bus multiplexing support | ||
+ | Multiplexer I2C Chip support ---> | ||
+ | [*] Autoselect pertinent helper modules | ||
+ | I2C Hardware Bus support ---> | ||
+ | <*> Atmel AT91 I2C Two-Wire interface (TWI) | ||
+ | <*> GPIO-based bitbanging I2C | ||
+ | |||
+ | </pre> | ||
+ | |||
+ | copy and rename .config to arch/arm/configs/imx_v7_android_defconfig | ||
==== Test ==== | ==== Test ==== |
Revision as of 05:14, 3 February 2017
Configure
HID interface
- Enable HID in menuconfig
Device Drivers --->
|
I2C interface
- Enable I2C bus in menuconfig
Device drivers ---> I2C support ---> <*> I2C support [*] Enable compatibility bits for old user-space <*> I2C device interface <*> I2C bus multiplexing support Multiplexer I2C Chip support ---> [*] Autoselect pertinent helper modules I2C Hardware Bus support ---> <*> Atmel AT91 I2C Two-Wire interface (TWI) <*> GPIO-based bitbanging I2C
copy and rename .config to arch/arm/configs/imx_v7_android_defconfig
Test
The getevent tool provides information about the touch device.
# getevent -lt [ 78826.389007] EV_ABS ABS_MT_TRACKING_ID 0000001f [ 78826.389038] EV_ABS ABS_MT_PRESSURE 000000ab [ 78826.389038] EV_ABS ABS_MT_POSITION_X 000000ab [ 78826.389068] EV_ABS ABS_MT_POSITION_Y 0000025b [ 78826.389068] EV_ABS ABS_MT_SLOT 00000001 [ 78826.389068] EV_ABS ABS_MT_TRACKING_ID 00000020 [ 78826.389068] EV_ABS ABS_MT_PRESSURE 000000b9 [ 78826.389099] EV_ABS ABS_MT_POSITION_X 0000019e [ 78826.389099] EV_ABS ABS_MT_POSITION_Y 00000361 [ 78826.389099] EV_SYN SYN_REPORT 00000000 [ 78826.468688] EV_ABS ABS_MT_SLOT 00000000 [ 78826.468688] EV_ABS ABS_MT_TRACKING_ID ffffffff [ 78826.468719] EV_ABS ABS_MT_SLOT 00000001 [ 78826.468719] EV_ABS ABS_MT_TRACKING_ID ffffffff [ 78826.468719] EV_SYN SYN_REPORT 00000000