Hello,

in the last days i was searching for a Mac OS driver for the usb to serial implementation of Atmel. In my project i used the cdc-serial device of the AT91 lib. But now i can not attach the device to my mac os.

Can anyone help me? Has anyone done this already?

Thanks.

So after a few more research there are new facts and unfortunatally new problems.

I found out that mac should detect the usb cdc serial device automatically without the need of a driver. In my case this is not. I think the reason is the error that is shown in the log files:

kernel[0]: 0 0 AppleUSBCDCACMControl: getFunctionalDescriptors - Descriptors are incorrect, checking...
kernel[0]: AppleUSBCDCACMData: start: InterfaceMappings dictionary not found for this device. Assume CDC Device...
kernel[0]: 0 0 AppleUSBCDCACMData: start - Find CDC driver failed

To make sure that i have not made a mistake by editing the descriptor i flashed the original usb-serial-cdc bin file from the softpack. The result was the same!

But i found out: If Sam-Ba runs on the device the descriptor is ok, and the device is detected.


So there is a problem in the descriptor of the usb serial cdc example, that windows can handle but mac not.

Has anyone had the same problem?
Does anyone know how to find the error in the descriptor?

Thanks.

I am not shure that I am experiancing the exact same problem as Stefan but I am also trying to get the CDC to work on OS X. I am currently running OS X version 10.5.8. I am using the CDC implementation used in the FreeRTOS example and I beleive it is based on the Atmel at91 lib.

I have tried to comunicate with the device using cutecom but with no sucsess.

The following is my log messages:
kernel[0]: AppleUSBCDCACMData: start: InterfaceMappings dictionary not found for this device. Assume CDC Device...
kernel[0]: AppleUSBCDC::createSerialStream NON WAN CDC Device
kernel[0]: AppleUSBCDC::createSerialStream using default naming and suffix...
kernel[0]: AppleUSBCDCACMData: Version number - 3.2.13, Input buffers 8, Output buffers 16

Can someone please help me interpret the log mesages?

Thanks,
/Lars

Same problem here. I really think this involves a broken driver (Apple?), or an incorrect device hookup (Atmel?). The current at91lib just carries an incompatible USB-descriptor for MAC OS X 10.5.8



Anyone an idea how to proceed from here?