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 Post subject: AT91SAM9G20-EK unrecognized by Linux usbserial driver
PostPosted: Wed Jun 10, 2009 9:45 pm 
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Joined: Wed Jun 10, 2009 9:35 pm
Posts: 21
Location: Minneapolis
I've got the usbserial driver enabled in my kernel, but when I
plug the USB cable into my AT91SAM9G20-EK, it isn't recognized.
My host can't even read any ID info from the board. Here's
what shows up in my syslog when I plug in the G20 eval board:
Code:
Jun  9 15:38:28 alpha usb 1-7.4: new full speed USB device using ehci_hcd and address 20
Jun  9 15:38:28 alpha usb 1-7.4: device descriptor read/64, error -32
Jun  9 15:38:29 alpha usb 1-7.4: device descriptor read/64, error -32
Jun  9 15:38:29 alpha usb 1-7.4: new full speed USB device using ehci_hcd and address 21
Jun  9 15:38:29 alpha usb 1-7.4: device descriptor read/64, error -32
Jun  9 15:38:29 alpha usb 1-7.4: device descriptor read/64, error -32
Jun  9 15:38:29 alpha usb 1-7.4: new full speed USB device using ehci_hcd and address 22
Jun  9 15:38:30 alpha usb 1-7.4: device not accepting address 22, error -32
Jun  9 15:38:30 alpha usb 1-7.4: new full speed USB device using ehci_hcd and address 23
Jun  9 15:38:30 alpha usb 1-7.4: device not accepting address 23, error -32
Jun  9 15:38:30 alpha hub 1-7:1.0: unable to enumerate USB device on port 4

The board doesn't show up at all when I do "lsusb".

According to http://www.linux4sam.org/twiki/bin/view ... initiative
it's supposed to show up as vendor=0x03eb product=0x6124 and is
supposed to be compatible with the CDC usbserial driver.

Any idea what's wrong?

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Grant


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 Post subject: Re: AT91SAM9G20-EK unrecognized by Linux usbserial driver
PostPosted: Wed Jun 10, 2009 10:46 pm 
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Joined: Wed Jun 10, 2009 9:35 pm
Posts: 21
Location: Minneapolis
It appears the eval board doesn't like being plugged into my
DLink USB hub (which works with everything else that's ever
been plugged into it).

When I plug it in somewhere else, it's recognized every time:
Code:
  # lsusb -d 03eb:6124
  Bus 001 Device 037: ID 03eb:6124 Atmel Corp. at91sam SAMBA bootloader

Weird.

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Grant


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 Post subject: Re: AT91SAM9G20-EK unrecognized by Linux usbserial driver
PostPosted: Sat Dec 26, 2009 11:33 am 
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Joined: Sat Dec 26, 2009 11:17 am
Posts: 2
I have the same problem with my at91sam9260-ek evaluation board. Can you let me know how did u solve the problem?


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