On Wed, 20 Feb 2008, David Brownell wrote: > On Wednesday 20 February 2008, David Lopo wrote: > > > > When a GET_DESCRIPTOR request is received it is forwarded to the gadget > > driver, > > then gadget enqueues a new usb_request but for which QH, RX or TX? > > It wouldn't be for an OUT (RX) transfer, since there's a bit in > the SETUP packet saying that it's for IN (TX)...
Just for the sake of completeness... The bit David is referring to is the high-order bit of the bmRequestType type in the SETUP packet. This bit is set for IN (device-to-host) transfers and clear for OUT (host-to-device) or no-data transfers. For Get-Descriptor requests this bit should always be set. Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
