On Tue, 2016-12-06 at 19:20 -0800, Cameron Gutman wrote:

Hi,

quoted

On Dec 6, 2016, at 4:25 PM, Roderick Colenbrander <roderick@gaikai.
com> wrote:

Hi,

I looked a bit deeper and found EV_PWR, though it isn't clearly
defined, but it is used in some places for purposes like this.
Would
this be an acceptable method?

I am interested in this too. I recently implemented the ability to
turn off wireless Xbox 360 controllers in [0], but there is no way
to activate this functionality without suspending the whole system.
Some folks [1] have asked for this ability in other scenarios.

[0]: Commit f712a5a05228058f6b74 ("Input: xpad - power off wireless
                                   360 controllers on suspend")
[1]: https://github.com/paroj/xpad/issues/52

Ditto the PS3 BD remote driver, when moving to the kernel, lost its
ability to suspend after X minutes, which drains the AA batteries
inside it.

In the original system, the remote would get disconnected after less
than a couple of minutes, and reconnect as soon as you pressed a
button, and make sure that button got sent to the device.

Would be great if we could control this from user-space.