-----Original Message----- From: Yuval Dafni Sent: Tuesday, September 25, 2007 4:46 PM To: 'Stefan Richter' Subject: RE: resume from suspended state with firewire Hi, Not a question this time, just some conclusions: In ohci1394.c I replaced #ifdef CONFIG_PM with #if 0, thus disabling suspend and resume. The result was immediate: the system went to sleep (using "echo standby > /sys/power/state") And woke up because of a bus reset or an iso packet. Apparently, this feature is already supported by the cards firmware/hardware, and all I had to do is let it be... Of course my card will consume power this way, and perhaps there is a way To program ohci1394.c in a smarter way, but that's beyond me for now. Thanks, Yuval Dafni. -----Original Message----- From: linux1394-user-bounces@xxxxxxxxxxxxxxxxxxxxx [mailto:linux1394-user-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Stefan Richter Sent: Thursday, September 20, 2007 5:33 PM To: Yuval Dafni Cc: linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx; linux1394-user@xxxxxxxxxxxxxxxxxxxxx Subject: Re: resume from suspended state with firewire (Adding Cc: linux-pm) Yuval Dafni wrote: > Can I make a suspended linux machine resume because of a 1394 packet? It's not possible, at least in the current implementation of ohci1394 and firewire-ohci. All interrupt events are disabled and the link layer controller is powered down when the machine enters suspended mode. I don't know if it is possible for PCI drivers to leave interrupts and receive DMA contexts etc. enabled and wake the machine up when an interrupt event occurs. Does wake-on-LAN (Ethernet) and wake-on-USB work by means of special hardware support? -- Stefan Richter -=====-=-=== =--= =-=-- http://arcgraph.de/sr/ ------------------------------------------------------------------------ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ mailing list Linux1394-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/linux1394-user _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
