Re: hid: ctrl urb status -75?

From: Randy.Dunlap (
Date: Mon Jul 21 2003 - 20:33:38 EST

On Mon, 21 Jul 2003 21:21:37 -0400 Matthew Harrell <> wrote:

| What does this error mean? I'm attempting to plug in a USB keyboard I've got
| and it gives me the messages
| hub 1-0:0: new USB device on port 1, assigned address 3
| input: USB HID v1.10 Keyboard [CHESEN USB Keyboard] on usb-0000:00:11.2-1
| drivers/usb/input/hid-core.c: ctrl urb status -75 received
| Other USB keyboards work fine so it must be something special with this one.
| This is under all kernels from 2.5.60 to 2.6.0-test1

include/asm-generic/errno.h says that 75 is EOVERFLOW.
Now look in Documentation/usb/error-codes.txt and it says that
EOVERFLOW is used for:
-EOVERFLOW (*) The amount of data returned by the endpoint was
                        greater than either the max packet size of the
                        endpoint or the remaining buffer size. "Babble".

The device returned too much data.
See whichever host controller driver you are using for details.

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