[PATCH v2 1/2] input: misc: Add generic input driver to read encoded GPIO lines
From: vigneshr@ti.com (Vignesh R)
Date: 2016-08-24 06:40:35
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On Wednesday 24 August 2016 01:33 AM, Dmitry Torokhov wrote:
On Tue, Aug 23, 2016 at 10:27:59AM -0500, Andrew F. Davis wrote:quoted
On 08/23/2016 01:16 AM, Vignesh R wrote:quoted
Add a driver to read group of GPIO lines and provide its status as a numerical value as input event to the system. This will help in intefacing devices, that can be connected over GPIOs, that provide input to the system by driving GPIO lines connected to them like a rotary dial or a switch. For example, a rotary switch can be connected to four GPIO lines. The status of the GPIO lines reflect the actual position of the rotary switch dial. For example, if dial points to 9, then the four GPIO lines connected to the switch will read HLLH(0b'1001 = 9). This value can be reported as an ABS_* event to the input subsystem. Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Rob Herring <robh@kernel.org> --- v2: Use decoder,max-value instead of gpio-decoder,max-value.That's not what Rob asked for. "decoder-max-value", not "decoder" vendor prefix.
Sorry.. Will fix this in v3. -- Regards Vignesh