Re: issue detecting USB at boot
Greg KH <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Mon, May 14, 2007 at 03:26:53PM -0500, Kumar Gala wrote: > I'm seeing the following error message when I have a wireless usb ethernet > adapter plugged into an embedded PPC SoC. If I plug the adapter in after > the SoC has booted the device is detected w/o any issue. Which makes me > thing that there is some initialization timing issue. > > Any suggestions on what to poke/look/dbg at would be helpful. I've seen this before for some odd host controller interactions with low voltage issues. The host controller doesn't detect the device is connected for some reason due to an electrical issue, nothing that the kernel can do about this. You might want to check the power levels on the board... good luck, greg k-h ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel