On Wed, Jun 01, 2016 at 07:35:28PM +0200, Linus Walleij wrote:

On Wed, Jun 1, 2016 at 5:43 AM, Michael Welling [off-list ref] wrote:

quoted

Did you ever find a solution for the exhausted char dev problem?

Not really. It seems it turned up that all systems that bugged were randomly
generated QEMU models, not real systems.

They were also really doing far out stuff already, overwriting existing chardevs
all over the place, which can be seen in logs after commit
49db08c35887 "chrdev: emit a warning when we go below dynamic major range"
which I got merged.

Yeah I noticed that their config was pretty crazy.
 

I'm now working on an event ABI so we get feature complete and also surpass
the old sysfs.

Okay I will review and test it when the patch shows up.

Is there a way to name a group of GPIOs?

It seems you are passing around a byte of data for each GPIO state.
Is there a reason why the bits couldn't bit masked into single variable
given the max number of handles is 64?

Yours,
Linus Walleij