Messages in this thread | | | Date | Thu, 16 Aug 2012 18:47:04 +0200 (CEST) | From | Jiri Kosina <> | Subject | Re: [PATCH 0/7] HID: picoLCD updates |
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On Thu, 16 Aug 2012, Bruno Prémont wrote:
> > I don't really understand this explanation. Once usb_kill_urb() returns, > > the URB should be available for future use (and therefore all queues > > completely drained). > > I won't have time today to check, though my guess is that on each > echo $usb-id > bind; echo $usb-id > unbind > under /sys/bus/hid/drivers/hid-picolcd/ the USB urb queue fills a bit does > not get cleared. > > Is usb_kill_urb() called when unbinding just the specific hid driver?
Yup, through hid_hw_stop() -> usbhid_stop().
> If so my short timing between bind/unbind must be triggering something > else... > > Otherwise I'm missing something as at first time I got no "output queue full" > messages, but as I repeated the bind/unbind sequences the prints per bind/unbind > iteration increased in number. > > Anyhow, on Friday evening/week-end I will continue digging and report back with my > findings.
Thank you, Bruno.
-- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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