Re: USB resume guarantees

Am Sonntag 11 November 2007 schrieb Tilman Schmidt:
> From reading Documentation/usb/power-management.txt I gathered
> the impression that suspend and resume/reset_resume calls would
> be paired, iow I could rely on either resume or reset_resume
> being called once for every call of suspend, but obviously that
> ain't so. So what are the possible sequences of events my driver
> must be prepared to cope with?

probe()
		-> disconnect()
		-> suspend()	-> disconnect()
		-> suspend()	-> resume() 		->BACK
		-> suspend()	-> reset_resume()	->BACK	(optional)
		-> pre_reset()	-> disconnect()
		-> pre_reset()	-> post_reset()		->BACK

As a device may be physically unplugged at all times, you must be ready
to handle disconnect() at any time.

	Regards
		Oliver

-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel