Messages in this thread | | | Date | Wed, 24 Jun 2009 12:51:48 +0530 | Subject | Re: Not able to read USB speed and descriptor | From | Prabhu Chawandi <> |
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In the devio.c,
I have added a case to return the speed and other descriptors,
call : ret = usb_control_msg(pRootHub, usb_sndctrlpipe(pRootHub, 0), USB_REQ_CLEAR_FEATURE, USB_RT_PORT, USB_PORT_FEAT_POWER, port_num + 1, NULL, 0, HZ);
The above call is returning err : -32 EPIPE.
The above call is working file for the rear port while the same is not working for the fromt port.
Anythig am I missing ? I am testing it for mass stoage device...
Any inputs ? ,,,,,
On Tue, Jun 23, 2009 at 6:57 PM, Prabhu Chawandi<prabhu.chavandi@gmail.com> wrote: > Hi all, > > I ma not able to read the USB descriptor and speeed, while I can > read and write into the storage device.. > > What might be the reason for that ? > > regards, > Prabhu > -- 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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