Thanks, I don't know yet, I'm new to power management. I do know that PCI cards have a signal called PME by which they may change the power state of the system, but I'm not sure how this is helpful in my case. I'm also not sure yet how all this relates to the different power states d1,d2,d3 and their implementation on PowerPc. Since I'm not going to re-write ohci1394, I might try to keep the card alive, hook on to one of the data pins and make it wake my cpu when a packet arrives. In this case, I'm wondering how many packets I'm going to loose by the time I wake up :-) ... Yuval. -----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
