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| author | Hans de Goede <hdegoede@redhat.com> | 2021-12-08 20:33:35 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-12-09 11:13:13 +0300 |
| commit | 5ede7f0cfb93f0f8edf2245671e18e982a247f55 (patch) | |
| tree | b6d2035eb2e01ea9499fb8e5b667e07a82160baa /drivers/input/touchscreen/goodix.h | |
| parent | 5d8dfaa71d87f742c53309b95cb6a8b274119027 (diff) | |
| download | linux-5ede7f0cfb93f0f8edf2245671e18e982a247f55.tar.xz | |
Input: goodix - add pen support
Some Goodix touchscreens have support for a (Goodix) active pen, add
support for this. The info on how to detect when a pen is down and to
detect when the stylus buttons are pressed was lifted from the out
of tree Goodix driver with pen support written by Adya:
https://gitlab.com/AdyaAdya/goodix-touchscreen-linux-driver/
Since there is no way to tell if pen support is present, the registering
of the pen input_dev is delayed till the first pen event is detected.
This has been tested on a Trekstor Surftab duo W1, a Chuwi Hi13 and
a Cyberbook T116 tablet.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=202161
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204513
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211207100754.31155-3-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen/goodix.h')
| -rw-r--r-- | drivers/input/touchscreen/goodix.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/goodix.h b/drivers/input/touchscreen/goodix.h index 62138f930d1a..f79eaeaceedb 100644 --- a/drivers/input/touchscreen/goodix.h +++ b/drivers/input/touchscreen/goodix.h @@ -76,6 +76,7 @@ struct goodix_chip_data { struct goodix_ts_data { struct i2c_client *client; struct input_dev *input_dev; + struct input_dev *input_pen; const struct goodix_chip_data *chip; const char *firmware_name; struct touchscreen_properties prop; |