Re: i.MX21 USB driver - hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad?
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 26 Sep 2007, Midhun A wrote: > Hi All, > > I am working on Freescale's i.MX21(ARM 9) processor based i.MX Lite > Kit. I have a USB host driver from > http://www.spinics.net/lists/arm-kernel/msg42277.html. When I boot my > kernel, the USB host and three ports are identified by the USB driver. > > imx21-hc imx21-hc.0: IMX21 USB Host Controller > imx21-hc imx21-hc.0: new USB bus registered, assigned bus number 1 > imx21_hc_reset:797 - NOT IMPLEMENTED YET > imx21-hc imx21-hc.0: irq 55, io base 0x00000000 > usb usb1: configuration #1 chosen from 1 choice > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 3 ports detected > > I have a 2GB flash drive. As soon as I plug it into the USB host > port, the following lines come up. > > hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? > hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? > hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? > hub 1-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? > > Sometimes, even without the flash drive connected, the kernel gives > the following error: > > usb 1-2: device descriptor read/64, error -110 > usb 1-2: device descriptor read/64, error -110 > usb 1-2: new low speed USB device using imx21-hc and address 3 > usb 1-2: device descriptor read/64, error -110 > usb 1-2: device descriptor read/64, error -110 > usb 1-2: new low speed USB device using imx21-hc and address 4 > usb 1-2: device not accepting address 4, error -110 > usb 1-2: new low speed USB device using imx21-hc and address 5 > usb 1-2: device not accepting address 5, error -110 > > The USB driver is of the version 2.6.16 and my kernel is of > version 2.6.22. Do I need to port the driver to 2.6.22? Yes, of course you do. > Is this a > driver problem or device/board problem? It's probably a device/board problem. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel