Jaroslav Kysela: > You've pointed to the reason: hardware does not generate input interrupts. > Try to disable the IRQ (snd-mpu401=1,,,0x300,-1).
I had to set the index field there to "1" or "-1" in order to get the MPU-401 recognized at bootup. (I have another sound card in this box too, maybe that's why.) As I said, I've already tried disabling the IRQ, and I get the same behavior. I just did it again to make sure - this time I'm running 2.4.49 with merged-in 2.5.59 alsa code. (Matrox framebuffer...) I boot up and see this: Advanced Linux Sound Architecture Driver Version 0.9.0rc6 (Tue Dec 17 19:01:13 2002 UTC). PCI: Found IRQ 5 for device 00:0c.0 PCI: Sharing IRQ 5 with 00:08.0 ALSA device list: #0: MPU-401 UART at 0x300, polled #1: Sound Blaster Audigy at 0xc800, irq 5 NET4: Linux TCP/IP 1.0 for NET4.0 But still no luck trying to read anything: $ cat /dev/snd/midiC0D0 & $ cat /proc/asound/UART/midi0 MPU-401 (UART) Output 0 Tx bytes : 20 Input 0 Rx bytes : 0 Buffer size : 4096 Avail : 0 Overruns : 0 ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel