[linux-usb-devel] Using actual_length for error checks on bulk and isoc urbs?

Stanislaw Gruszka stf_xl at wp.pl
Mon Nov 21 17:40:13 EST 2005


On Monday 21 of November 2005 16:13, Alan Stern wrote:
> I don't understand 2).  If an error occurs in a bulk or iso URB,
> urb->actual_length may still be larger than 0.  If an error occurs in an
> iso frame, urb->frame_desc[i].actual_length may still be larger than 0 and
> urb->frame_desc[i].status may still be 0 (since iso errors often are
> undetectable).  Does that answer your question?
Yes, thank you Alan
Staszek Gruszka 



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