Sept. 8, 2014
6:34 p.m.
On Mon, Sep 8, 2014 at 9:16 PM, AYAN KUMAR HALDER <ayankumarh@gmail.com> wrote:
When a device wakes up, what about the cpu , is it still on idle with cpuidle ? for example how a mouse move trigger the screen to wake up ?
This is a case of system suspend/resume. Your mouse is a wake-up device. It is configured to send wakeup interrupts. It would wake up the cpu first and then the cpu wakes up all the devices.
Hi, Do you mean runtime suspend/resume ? Why will the mouse wake the cpu from idle (cpuidle) ? Isn't it that the wakeup source will wake only the specific device which was runtime suspended ? Thanks