From: FFADO <ffa...@ff...> - 2012-04-11 05:29:31
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#335: Channel routing support for Echo Audiofire 2/4 ---------------------------------------+------------------------------------ Reporter: artfwo | Owner: Type: bug | Status: new Priority: waiting for device info | Milestone: Indeterminant (need device info) Component: devices/fireworks | Version: FFADO SVN (trunk) Resolution: | Keywords: Device_name: AudioFire2 | ---------------------------------------+------------------------------------ Comment (by jwoithe): Assuming that Clemens is correct in comment [comment:3], what is needed is for someone to sit down with the standards documents which describe this IsoChannelMap command, determine how it works, work out how it might fit into the FFADO framework (something others could possibly help with once the details are known), and code up support for it in FFADO. I don't know where to get the description of the IsoChannelMap command, but Clemens may be able to point us in the right direction. Ultimately the writing of the IsoChannelMap support would have to be done by someone with an AudioFire2 device - otherwise debugging will be unworkable. Before going to this effort though, it would probably be a good idea to determine that the AudioFire2 really does use IsoChannelMap for the functionality described in this ticket (and if so, how). This is really the "device information" that's required to advance this ticket. Beyond protocol analysis of the data on the wire (something which would involve a PCILynx firewire card and the nosy utility distributed as part of the Linux kernel source) I'm not sure there's any other way to approach this. Perhaps there are some device capability bits set somewhere as part of the fireworks protocol which could be probed instead - again, Clemens may have some ideas. I don't own an AudioFire device myself and I have no direct experience with the protocol it uses, so I can't check this out directly myself. -- Ticket URL: <http://subversion.ffado.org/ticket/335#comment:7> FFADO <http://subversion.ffado.org/index.fcgi> Free Firewire Audio Drivers |