[alsa-devel] ALSA error : frame 0 active: -75

[Clemens Ladisch]

Rajul Kumar wrote:
> ALSA sound/usb/usbaudio.c:354: frame 0 active: -75

-75 = -EOVERFLOW

> which is followed by coninous loop of below messages :
> 
> ALSA sound/usb/usbaudio.c:354: frame 0 active: -71

-71 = -EPROTO

> ALSA sound/usb/usbaudio.c:354: frame 0 active: -18

-18 = -EXDEV

Documentation/usb/error-codes.txt says:
| -EOVERFLOW (*)          The amount of data returned by the endpoint was
|                         greater than either the max packet size of the
|                         endpoint or the remaining buffer size.  "Babble".

| -EPROTO (*, **)         a) bitstuff error
|                         b) no response packet received within the
|                            prescribed bus turn-around time
|                         c) unknown USB error 

| -EXDEV                  ISO transfer only partially completed
|                         look at individual frame status for details

| (*) Error codes like -EPROTO, -EILSEQ and -EOVERFLOW normally indicate
| hardware problems such as bad devices (including firmware) or cables.


Regards,
Clemens