[LAD] [LAU] How to change the USB bus sample rate ?
Clemens Ladisch
cladisch at fastmail.net
Tue Aug 12 07:16:50 UTC 2008
Adrien DANIEL wrote:
> I read somewhere that it was possible to change the USB bus
"universal serial bus bus"? ;-)
> sample rate.
USB doesn't have a built-in sample rate; audio samples are transported
in packets.
USB does have a bit rate and a frame rate, but neither of these can be
changed. The only exception is the frame rate on UHCI controllers; to
change the frame length, change the initialization of the USBSOF
register in the configure_hc() function in uhci-hcd.c.
Why would you want to do this?
Regards,
Clemens
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