d862a3068e
Expose model and fw_version via sysfs. Also query the model in probe to make sure, that the I2C communication with the device works before successfully probing the driver. This is a bit complicated, since EETI devices do not have a sync interface. Sending the commands and directly reading does not work. Sending the command and waiting for some time is also not an option, since there might be touch events in the mean time. Last but not least we do not cache the results, since this interface can be used to check the I2C communication is still working as expected. Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20200805160520.456570-5-sebastian.reichel@collabora.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
16 lines
521 B
Plaintext
16 lines
521 B
Plaintext
What: /sys/bus/i2c/devices/xxx/fw_version
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Date: Aug 2020
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Contact: linux-input@vger.kernel.org
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Description: Reports the firmware version provided by the touchscreen, for example "00_T6" on a EXC80H60
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Access: Read
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Valid values: Represented as string
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What: /sys/bus/i2c/devices/xxx/model
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Date: Aug 2020
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Contact: linux-input@vger.kernel.org
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Description: Reports the model identification provided by the touchscreen, for example "Orion_1320" on a EXC80H60
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Access: Read
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Valid values: Represented as string
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