SAM-BA CDC ACM enumeration problem on Mac VM host

cverges · **Joined:** Tue May 12, 2009 7:21 pm **Posts:** 19

Hi all,

I am using a MacBook Pro running Mac OS 10.6.8. On this system, I have an Ubuntu 12.04 LTS virtual machine running inside VMware Fusion. The Ubuntu guest contains an OpenEmbedded build system and the Linux version of the SAM-BA programming utility.

When I connect an AT91SAM9G20-EK to my MacBook Pro, I see the following in the dmesg output:

Code:

USBF:   178.936   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   184.936   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   190.937   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   196.938   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   202.938   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   203.870   [0xffffff8012c86800] The IOUSBFamily was not able to enumerate a device.
USBF:   209.939   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   215.940   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   215.971   [0xffffff8012c86800] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 2 of Hub at 0xfd100000)
USBF:   221.940   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   227.941   AppleUSBEHCI[0xffffff80126ae000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)
USBF:   227.972   [0xffffff8012c86800] The IOUSBFamily gave up enumerating a USB device after 10 retries.  (Port 2 of Hub at 0xfd100000)
USBF:   227.972   [0xffffff8012c86800] The IOUSBFamily was not able to enumerate a device.

Unfortunately, this means that I cannot map the CDC ACM device to the Ubuntu guest.

Has anyone else encountered this problem and found a solution?

Thanks,
Chris

SAM-BA CDC ACM enumeration problem on Mac VM host

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