[sane-devel] Setup Packet Question
m. allan noah
anoah at pfeiffer.edu
Wed Aug 2 00:21:30 UTC 2006
perhaps the usb sniffer just shows the setup packet in the return data? i
mean, all those values are listed in the going down part:
Request = ff
Value = 8440
Index = 0000
and then later in the coming back part:
SetupPacket : 21 ff 40 84 00 00 40 00
i dont think the setup packet actually comes back.
can you try looking for a firmware file on your windows box that looks
like these data blocks?
On Tue, 1 Aug 2006, Tabor Kelly wrote:
> I feel like I understand almost all of what is happening in this log:
> However, I don't understand any of the Setup Packets with the bmRequestType
> of 0x21. They all appear as the URB is "coming back!" But 0x21 is a
> host-to-device transfer of type class with the recipient being the interface.
> Is there something about the URBs "going down" and "coming back" that I don't
> Thank You,
> Tabor Kelly
"so don't tell us it can't be done, putting down what you don't know.
money isn't our god, integrity will free our souls" - Max Cavalera
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