Karsten Wiese wrote: > Next test: > > unplug device > $ rmmod ehci-hcd > $ modprobe ehci-hcd log2_irq_thresh=3 > retest > > Thanks, > Karsten > It makes a slight difference - to the wrong direction. A snippet from the beginning of capture (before cold boot): Feb 22 14:24:48 halley [77150.436087] ALSA sound/usb/usx2y/usb_stream.c:61: idle=-18 ul=1518 ps=1536 Feb 22 14:24:48 halley [77150.436564] ALSA sound/usb/usx2y/usb_stream.c:61: idle=0 ul=1554 ps=1536 Feb 22 14:24:48 halley [77150.436579] ALSA sound/usb/usx2y/usb_stream.c:718: 4 322 Feb 22 14:24:48 halley [77150.436582] ALSA sound/usb/usx2y/usb_stream.c:742: 1 Feb 22 14:24:48 halley [77150.452420] i_capture_start:632: 0 0 30 36 30 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 30 0 36 0 30 0 30 0 30 0 30 0 30 0 30 Feb 22 14:24:48 halley [77150.452434] ALSA sound/usb/usx2y/usb_stream.c:61: idle=-12 ul=1524 ps=1536 So it looks like we're getting even less correct data. In addition I tried out of curiosity thresholds 2 and 4. 2 gives somewhat similar results as 3, but 4 gives nothing but zeros. -> reboot And to make things even more puzzling, after cold boot and changing the threshold to 3 plugging in the Tascam gives about 8 lines with non-zero data. After unplugging and replugging I get only 2 lines before getting 0 as every second value. BR, Timo -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
