Re: usb.c patch -> successfuly read usb descriptors on some USB device
Greg KH (firstname.lastname@example.org)
Tue, 15 Jan 2002 10:38:14 -0800
On Tue, Jan 15, 2002 at 11:59:57AM +0200, Dmitri Kassatkine wrote:
> Sometimes USB subsystem cannot get USB descriptor.
> Jan 15 10:44:21 selma kernel: hub.c: USB new device connect on bus1/1, assigned device number 25
> Jan 15 10:44:21 selma kernel: usb.c: couldn't get all of config descriptors
> Jan 15 10:44:21 selma kernel: usb.c: unable to get device 25 configuration (error=-110)
> Here is patch how to fix it for 2.4.17. It works for 2.4.16 as well.
> It necassary to read descriptor at once, not first 8 byte first.
Then this device does not match the USB spec.
> It works well now for NSM USB Bluetooth dongle.
Has this device gone through the USB certification process? There are a
_lot_ of USB bluetooth devices out there that violate the USB spec, and
have not been certified.
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