Re: [Gumstix-users] Overo serial to USB problems

[Markus S. <msv...@ae...>]

I should add that the same thing happens with USB keyboards and mice. 
The "unable to enumerate" message appears, and afterward there is no 
response when plugging in or unplugging USB devices.

Regards,
Markus.


On 2010.04.22 9:58, Markus Svilans wrote:
> Dear Gumstix Users,
>
> I am having trouble getting a Belkin F5U409 serial-to-USB converter to
> work with my Overo Air. I am using a Tobi expansion board, which
> provides a USB host connector.
>
> When I plug the Belkin converter in, the Overo displays the following
> message:
>
> hub 2-0:1.0: unable to enumerate USB device on port 2
>
> After this, the Overo no longer responds when USB devices are connected
> and disconnected.
>
> A friend more knowledgeable in Linux than me suggested I try starting
> the USB serial modules. I rebooted, then did this:
>
> root@overo:~# modprobe belkin_sa
> usbcore: registered new interface driver usbserial
> USB Serial support registered for generic
> usbcore: registered new interface driver usbserial_generic
> usbserial: USB Serial Driver core
> USB Serial support registered for Belkin / Peracom / GoHubs USB Serial
> Adapter
> usbcore: registered new interface driver belkin
> belkin_sa: v1.2:USB Belkin Serial converter driver
>
> No luck, the "unable to enumerate" message still appears. Again, the
> Overo stopped responding to USB devices connected and disconnected.
>
> Here is dmesg output after loading the serial modules, and connecting
> the Belkin device:
>
> usbcore: registered new interface driver usbserial
> USB Serial support registered for generic
> usbcore: registered new interface driver usbserial_generic
> usbserial: USB Serial Driver core
> USB Serial support registered for Belkin / Peracom / GoHubs USB Serial
> Adapter
> usbcore: registered new interface driver belkin
> belkin_sa: v1.2:USB Belkin Serial converter driver
> usb usb2: usb resume
> ehci-omap ehci-omap.0: resume root hub
> hub 2-0:1.0: hub_resume
> ehci-omap ehci-omap.0: GetStatus port 2 status 001803 POWER sig=j CSC
> CONNECT
> hub 2-0:1.0: port 2: status 0501 change 0001
> hub 2-0:1.0: state 7 ports 3 chg 0004 evt 0000
> hub 2-0:1.0: port 2, status 0501, change 0000, 480 Mb/s
> ehci-omap ehci-omap.0: port 2 full speed -->  companion
> ehci-omap ehci-omap.0: GetStatus port 2 status 003801 POWER OWNER sig=j
> CONNECT
> hub 2-0:1.0: port 2 not reset yet, waiting 50ms
> ehci-omap ehci-omap.0: GetStatus port 2 status 003002 POWER OWNER
> sig=se0 CSC
> hub 2-0:1.0: unable to enumerate USB device on port 2
> hub 2-0:1.0: state 7 ports 3 chg 0000 evt 0004
> hub 2-0:1.0: hub_suspend
> usb usb2: bus auto-suspend
> ehci-omap ehci-omap.0: suspend root hub
>
> Has anyone else had this problem?
> It was mentioned to me that the GPIO configuration might be connected to
> this issue. Is this possible?
>
> I am using the kernel 2.6.32 and filesystem image that shipped on the
> Overo. It was shipped a few weeks ago.
>
> Any help would be greatly appreciated.
>
> Best regards,
> Markus.
>
>
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