On Thu, Sep 10, 2009 at 10:48 AM, Antti Palosaari<crope@xxxxxx> wrote: > Here it is, USB2.0 URB is now about 16k both af9015 and ce6230 devices. > Now powertop shows only about 220 wakeups on my computer for the both > sticks. > Please test and tell what powertop says: > http://linuxtv.org/hg/~anttip/urb_size/ > > I wonder if we can decide what URB size DVB USB drivers should follow and > even add new module param for overriding driver default. > > Antti > -- > http://palosaari.fi/ > Hello Antti, The URB size is something that varies on a device-by-device basis, depending on the bridge chipset. There really is no "one-size-fits-all" value you can assume. I usually take a look at a USB trace of the device under Windows, and then use the same value. Cheers, Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
