alsa-0.9.0rc6 RH7.3 kernel 2.4.19 with Andrew Morton's low latency patches ASUS A7M266 Mobo w/Duron 750 single proc I have compiled, installed and loaded the ALSA rme9652 driver. It's compiled without OSS. Using arecord/aplay, I can only record and playback files in mono format. Stereo is eluding me. Pardon the ascii art, monospace font required. My configuration is: LineIn1 LineIn2 Mic ElecBass | | | | main out-----Mackie 1202-VLZpro -----LineIn 5/6 L/R | | | | | input--- ---output L/R | | L/R ART DI/O 2 channel 24bit AD/DA converter | | S/PDIF---- ----S/PDIF RCA out RCA in | | | | S/PDIF S/PDIF RCA in RCA out | | -----Hammerfall--------------------- Also, I can only arecord/aplay using the plug layer. All attempts to use hw fail with: aplay: set_params:781: Access type not available The consumer card is card0 (cs46xx, Hercules Game Theater). My .asoundrc is: pcm.Crystal { type hw card 0 } ctl.Crystal { type hw card 0 } pcm.RME9652 { type hw card 1 } ctl.RME9652 { type hw card 1 } I used alsactl store/restore to enable the S/PDIF on the Hammerfall. It works fine for mono recording and playback. The card is set to AutoSync and I can see sample rate changes made on the ART converter picked up in the Hammerfall. Thanks for any help, Phil