Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug


       device_suspend - Save state and stop all devices in system.


       int device_suspend  (pm_message_t state);


       state  Power state to put each device in.


       Walk  the  dpm_active list, call ->suspend for each device, and move it
       to dpm_off. Check the return value for each. If it returns 0,  then  we
       move the the device to the dpm_off list. If it returns -EAGAIN, we move
       it to the dpm_off_irq list. If we get a different error, try  and  back

       If  we  hit a failure with any of the devices, call device_resume above
       to bring the suspended devices back to life.