Re: Linux GPIO internals

2015-01-14 Thread Linus Walleij
On Mon, Jan 5, 2015 at 6:47 PM, Michael Welling wrote: > On Sat, Jan 03, 2015 at 02:12:06PM +0100, Alexandre Courbot wrote: >> It seems like your mail is coming just at the right time. We have >> recently merged a patch that allows setting several GPIOs at the same >> time, if the hardware suppor

Re: Linux GPIO internals

2015-01-05 Thread Michael Welling
On Sat, Jan 03, 2015 at 02:12:06PM +0100, Alexandre Courbot wrote: > Hi Michael, sorry for the delayed reply on this interesting issue. > > On Wed, Dec 24, 2014 at 10:53 PM, Michael Welling > wrote: > > All, > > > > For years now EMAC has provided an out-of-tree series of class drivers > > for a

Re: Linux GPIO internals

2015-01-03 Thread Alexandre Courbot
Hi Michael, sorry for the delayed reply on this interesting issue. On Wed, Dec 24, 2014 at 10:53 PM, Michael Welling wrote: > All, > > For years now EMAC has provided an out-of-tree series of class drivers > for accessing various devices. The EMAC GPIO class and character > interfaces predate the

Linux GPIO internals

2014-12-24 Thread Michael Welling
All, For years now EMAC has provided an out-of-tree series of class drivers for accessing various devices. The EMAC GPIO class and character interfaces predate the introduction of the gpiolib interface and have been ported across several kernel versions. http://wiki.emacinc.com/wiki/Using_the_EMA