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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2025-07-01 11:40:06 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2025-07-01 11:42:14 -0700 |
| commit | 68743c500c6eafcd0b16dc6067fea5bca0795eef (patch) | |
| tree | a8beac67661c68149a83a013aaf3fe5e15ca7737 /Documentation/input | |
| parent | Input: cs40l50 - remove redundant flush_workqueue() calls (diff) | |
| download | linux-68743c500c6eafcd0b16dc6067fea5bca0795eef.tar.gz linux-68743c500c6eafcd0b16dc6067fea5bca0795eef.zip | |
Input: edt-ft5x06 - use per-client debugfs directory
The I2C core now provides a debugfs entry for each client. Let this
driver use it instead of the custom directory in debugfs root. Further
improvements by this change: support of multiple instances.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250318091904.22468-1-wsa+renesas@sang-engineering.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/input')
| -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 |