Messages in this thread | | | From | Laxman Dewangan <> | Date | Thu, 19 Jan 2012 13:09:24 +0530 | Subject | RE: [PATCH V1] input: keyboard: Add interrupt keyboard driver. |
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On Thursday, January 19, 2012 1:00 PM, Dmitry Torokhov wrote:
> On Tue, Jan 17, 2012 at 11:11:55AM +0530, Laxman Dewangan wrote: > > This driver enables the key detection of the keys which > > are connected to interrupt lines. > > Each key is capable of generating an interrupt, and the > > statesi (pressed or released) cannot be found by any > > mechanism. > > A key press event generated when interrupt occurs, and > > based on the debounce time setting, a key release event > > is generated. There is no need to read the state of the > > keys. > > > Is it possible to modify gpio_keys to skip requesting and settin up > certain gpios and and use it instead of a brand new driver?
I first tried this approach and found that this makes the gpio_keys driver very complex because almost all places where gpio-apis are getting called need to put under if condition. Also there is some special handling for auto key release events Which makes gpio-key driver again complex.
> > -- > Dmitry
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