On Mon, 2003-12-01 at 21:44, Steve Calfee wrote: > At 11:04 AM 11/29/2003 -0500, Alan Stern wrote: > >On Fri, 28 Nov 2003, Andrew Heaton wrote: > > > > > I am trying to get a Freecom USB stick (0c76:0005) working with > > > an embedded linux build based on 2.4.22. > > > <snip> > > > hci_submit_urb: flags 0 length 4 length2 0 packets 0 interval 0 > > > data A3 00 00 00 01 00 04 00 > > Setup Data: A3 00 00 00 01 00 04 00 > --------------------------------------- > Direction: Device-to-host > Type: Class > Recipient: Other > --------------------------------------- > bRequest: GET_STATUS > > wValue: 0x0000 > > wIndex: For Port # 1 > > wLength: 4 > > > > > hci_submit_urb: flags 0 length 0 length2 0 packets 0 interval 0 > > > data 23 01 10 00 01 00 00 00 > > Setup Data: 23 01 10 00 01 00 00 00 > --------------------------------------- > Direction: Host-to-device > Type: Class > Recipient: Other > --------------------------------------- > bRequest: CLEAR_FEATURE > > wValue: C_PORT_CONNECTION > > wIndex: Port # 1 > > wLength: 0 > > <snip> > As I showed above with a decode from a CATC chief, they are setup commands > to a hub, probably the one containing his device.
Is that an external hub, because we didn't have one. However there is a "Virtual Root Hub" which is part of the ISP116x. I'm a little fuzzy on what a this is meant to mean or do, but could we be incorrectly routing packets for the hub to the device?
That may explain some of the weirdness, if I understood what role the root hub plays in USB :-)
It is unlikely to be a virtual root hub, they don't actually have traffic on the usb data wires.
However, you were using some kind of kernel trace info, rather than a usb sniffer, so depending on where you put the printks it might be hub commands emulated in software for the root hub.
Or your hardware may have a real hub on the circuit board, connected to your root hub.
In any case, it is unlikely those hub commands are causing your problem with your device.
Regards, Steve
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