hi Clemens: 2013/9/10 Clemens Ladisch <clemens@xxxxxxxxxx>: > vichy wrote: >> 2013/9/9 Clemens Ladisch <clemens@xxxxxxxxxx>: >>> vichy wrote: >>>> I try to do webcam audio capture on my arm platform. >>>> when I execute audio capture I got below message >>>> "retire_capture_urb: 108 callbacks suppressed" >>> >>> This means that the retire_capture_urb() function printed lots of >>> messages, and that 108 of them were thrown away because they were >>> identical. >> >> Does that mean: >> 1. 108 of messages are the same and through away > > No, that at least 109 are the same. > >>> You have to look at the previous line to get the actual >>> message. >> >> Would you please tell me what the "previous line to get the actual >> message" you mean? > > The previous line in the message log. > >> tinycap record.wav -D 0 -d 0 -c 2 -r 32000 > > Try increasng -n or -p. > > Does recoding on a PC with the same parameters work? the same parameters work well on PC. I think it is ehci hardware problem on my embedded system. Appreciate your kind help :) -- 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