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H A D | goodix.c | 5f6f117c Wed May 06 18:52:13 CDT 2015 Paul Cercueil <paul@crapouillou.net> Input: goodix - check the 'buffer status' bit before reading data
The MSB of the first byte read via I2C at the coordinates address indicates whether the data is valid or ready (called "buffer status" in the datasheets) when an interrupt is raised. Previously, this bit was ignored, which resulted in a lot of incorrect detections of "finger removed" events.
Signed-off-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 5f6f117c Wed May 06 18:52:13 CDT 2015 Paul Cercueil <paul@crapouillou.net> Input: goodix - check the 'buffer status' bit before reading data The MSB of the first byte read via I2C at the coordinates address indicates whether the data is valid or ready (called "buffer status" in the datasheets) when an interrupt is raised. Previously, this bit was ignored, which resulted in a lot of incorrect detections of "finger removed" events. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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