Lpc2000

Manisha Kalita wrote:
> Hi all,
> 
> i am designing a USB driver in lpc2148 board. the driver is working fine
> with Windows OS in the host. but whenever, we connect the board in a linux
> host machine, it is giving the following problem.
> 
> May  9 17:29:49 localhost kernel: usb 2-2: new full speed USB device using
> address 12
> May  9 17:29:54 localhost kernel: usb 2-2: control timeout on ep0in
> May  9 17:29:55 localhost kernel: usb 2-2: device descriptor read/all,
> error -110
> May  9 17:29:55 localhost kernel: usb 2-2: new full speed USB device using
> address 13
> May  9 17:30:00 localhost kernel: usb 2-2: control timeout on ep0in
> 
> the device is enumerated properly in host machine with windows OS. then why
> in linux it is not recognizing the device?
> Can anyone help me in this regard?

Probably a bug in the device firmware that is triggered by Linux but
not by Windows.

Have you tried running the USBCV (compliance verifier) tool with your
device? It's at http://www.usb.org/developers/tools
It should at least pass the chapter 9 tests.
The latest version of the tool (1.3beta) even includes some class
specific tests, like HID and mass storage.

To use the tool you also need an EHCI controller and a high-speed hub.

Regards,
Bertrik