Re: [PATCH 2/3] Add support for monitoring gpio switches
From: Greg Kroah-Hartman
Date: Fri Dec 04 2015 - 13:57:20 EST
On Fri, Dec 04, 2015 at 05:31:14PM +0000, Martyn Welch wrote:
> Select Chromebooks have gpio attached to switches used to cause the
> firmware to enter alternative modes of operation and/or control other
> device characteristics (such as write protection on flash devices). This
> patch adds a driver that exposes a read-only interface to allow these
> signals to be read from user space.
>
> This functionality has been generalised to provide support for any device
> with device tree support which needs to identify a gpio as being used for a
> specific task.
>
> Signed-off-by: Martyn Welch <martyn.welch@xxxxxxxxxxxxxxx>
> ---
> drivers/misc/Kconfig | 11 ++++
> drivers/misc/Makefile | 1 +
> drivers/misc/gpio-switch.c | 160 +++++++++++++++++++++++++++++++++++++++++++++
Why isn't this in drivers/gpio/ ?
why make it a misc driver?
thanks,
greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/