Getting the USB Host to work

[thomas.cooksey at bt.com]

Hi All,

I'm also trying to get the USB Host working on the neo. I've got a kernel running (2.6.22.5-r3) with the USB host patch. I'm logging in over bluetooth (as suggested in the wiki page) and have done an ifdown on usb0 (also recommended on the wiki page). When I echo "host" to usb_mode, I get the following in var/log/messages:

Oct  5 22:31:24 fic-gta01 user.warn kernel: s3c2410: changing usb to host
Oct  5 22:32:01 fic-gta01 user.err kernel: hub 1-0:1.0: Cannot enable port 2.  Maybe the USB cable is bad?
Oct  5 22:32:04 fic-gta01 user.err kernel: hub 1-0:1.0: Cannot enable port 2.  Maybe the USB cable is bad?
Oct  5 22:32:08 fic-gta01 user.err kernel: hub 1-0:1.0: Cannot enable port 2.  Maybe the USB cable is bad?

This is with nothing plugged into the usb port. When I do plug something in using the cable I made, I get the following:

Oct  5 22:32:15 fic-gta01 user.info kernel: usb 1-2: new full speed USB device using s3c2410-ohci and address 41
Oct  5 22:32:15 fic-gta01 user.err kernel: usb 1-2: device descriptor read/64, error -62
Oct  5 22:32:16 fic-gta01 user.err kernel: usb 1-2: device descriptor read/64, error -62
Oct  5 22:32:16 fic-gta01 user.info kernel: usb 1-2: new full speed USB device using s3c2410-ohci and address 42
Oct  5 22:32:16 fic-gta01 user.err kernel: usb 1-2: device descriptor read/64, error -62
Oct  5 22:32:16 fic-gta01 user.err kernel: usb 1-2: device descriptor read/64, error -62
Oct  5 22:32:16 fic-gta01 user.info kernel: usb 1-2: new full speed USB device using s3c2410-ohci and address 43
Oct  5 22:32:17 fic-gta01 user.err kernel: usb 1-2: device not accepting address 43, error -62
Oct  5 22:32:17 fic-gta01 user.info kernel: usb 1-2: new full speed USB device using s3c2410-ohci and address 44
Oct  5 22:32:17 fic-gta01 user.err kernel: usb 1-2: device not accepting address 44, error -62

I'm plugging in an Archos MP3 player which is powered from a separate DC power supply (I'm not applying power to my cable).

Any thoughts?

Also, I assume you connect the USB cable strait through? red-to-red, black-to-black, green-to-green & white-to-white. You don't have to swap green & white?


Cheers,

Tom