diff options
Diffstat (limited to 'Documentation/input/devices')
| -rw-r--r-- | Documentation/input/devices/edt-ft5x06.rst | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/Documentation/input/devices/edt-ft5x06.rst b/Documentation/input/devices/edt-ft5x06.rst index 1ccc94b192b7..e410d73d4841 100644 --- a/Documentation/input/devices/edt-ft5x06.rst +++ b/Documentation/input/devices/edt-ft5x06.rst @@ -29,8 +29,25 @@ The driver allows configuration of the touch screen via a set of sysfs files: For debugging purposes the driver provides a few files in the debug -filesystem (if available in the kernel). In /sys/kernel/debug/edt_ft5x06 -you'll find the following files: +filesystem (if available in the kernel). They are located in: + + /sys/kernel/debug/i2c/<i2c-bus>/<i2c-device>/ + +If you don't know the bus and device numbers, you can look them up with this +command: + + $ ls -l /sys/bus/i2c/drivers/edt_ft5x06 + +The dereference of the symlink will contain the needed information. You will +need the last two elements of its path: + + 0-0038 -> ../../../../devices/platform/soc/fcfee800.i2c/i2c-0/0-0038 + +So in this case, the location for the debug files is: + + /sys/kernel/debug/i2c/i2c-0/0-0038/ + +There, you'll find the following files: num_x, num_y: (readonly) contains the number of sensor fields in X- and |