Messages in this thread | | | Date | Fri, 21 May 2004 11:05:21 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [linux-usb-devel] [PATCH] visor: Fix Oops on disconnect |
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On Fri, 21 May 2004, nardelli wrote:
> The api for usb_control_msg says, 'If successful, it returns 0, othwise a > negative error number', and I didn't see any other way to figure out how > much data was being returned.
In the current kernel sources, the kerneldoc for usb_control_msg() says "If successful, it returns the number of bytes transferred, otherwise a negative error number."
Alan Stern
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