Martin McCormick wrote: > There are two Plug&Play sound cards on this system and > ISAP&P sees them. If I insert a PCI sound card and power up, the > CS4236 gets IRQ 5 and the SoundBlaster gets zilch. Reading > available documentation, it looks like this is because older ISA > cards may not be able to report enough back to the system to get > the correct resources so one must stuff the correct values for > irq, port address and DMA lines in to parameters for snd_sbawe. > > I can force the SB16 to come on line if I remove the > module for the cs4236 and make the SB16 Card 0 and then the > CS4236 is high and dry and then it won't show up. > > Here is what each card allocates when it is working and > is Card 0 > > # 0 [CS4236B ]: CS4236B - CS4236B > # CS4236B at 0x534, irq 5, dma 1&3 > # 0 [S16 ]: SB AWE - Sound Blaster 16 > # Sound Blaster 16 at 0x220, irq 5, dma 1&5 > > If I can make them both work, the SB16 which should be card 1 > will need a different IRQ for sure and maybe different DMA's. > > I was able to install a PCI sound card temporarily which > does allocate resources but is unusable due to bad hardware on > the right channel or I would have used it and been done with the > whole thing. > > It got IRQ 9. > > When I feed the sbawe parameters, should they be fed in > to the /etc/modules file where snd_sbawe is entered or should I > put them in /etc/modprobe.d/alsa-base.conf after the INDEX=1 > parameter? > > When the SB is forced to be Card 0, it does appear to work but I > haven't tried much with it since that is not the way it is going > to work if it ever does work. > > Thanks and I am gradually beginning to figure out at > least what the problems are. > > Martin
I recall setting those in bios years ago, but I think its doable in the kernel as well (driver? maybe) However you should read at least the manual to your card [3]. IT looks to me both CS4236B and S16 reister to the 8bit ISA while the other with IRQ9 must be 16bit - thus getting IRQ>8 look at [1] to see which IRQ you could probably use and into [3] for detailed spec on ISA configuration. [1] http://www.tldp.org/LDP/LG/issue38/blanchard.html [2] http://tldp.org/HOWTO/Plug-and-Play-HOWTO-11.html [3] http://people.freebsd.org/~tanimura/docs/4236b.pdf
