[LAU] Many identical cards - how to keep them straight

Arnold Krille arnold at arnoldarts.de
Mon Mar 10 10:18:36 EDT 2008


Am Montag, 10. März 2008 schrieb Mark Knecht:
> And let's not drop out 1394 or other external buses. The issue isn't
> USB as much as it's an external network of devices that can both be
> rewired easily and in some cases come and go in strange ways. If
> you're using an external USB powered hub, for instance, and the power
> isn't applied for some period of time the system thinks the device is
> gone when it's just that someone kicked out the wall wart. Making that
> sort of support of external devices really robust would take some
> serious thinking.

The way ffado works, these will all be joined (possibly automatically) in one 
big device. and each channel on each device is named unique(?) and aliased 
with system_*. So it should be the same ports in jack everytime you start the 
setup.

But I don't think ffado is currently able to do dynamic add/remove. Can't test 
it here, not enough fw-devices. ;-)

For the real problem: Maybe udev can show some more information (like serial 
number) for the pci devices? Or maybe it can provide the interrupt. That way 
unique devices would be possible.

Arnold
-- 
visit http://www.arnoldarts.de/
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