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Hi All, I am working on USB composite device ( CDC ECM + Mass storage). I observed the below behavior of my device with MAC OS X. 1)USB CDC ECM + Mass storage composite device With IAD - When I connect this device with Mac OS X, both CDC ECM and Mass storage Interface are not up. Same device when connected with linux and windows I can see both ECM and mass storage interface are up and working. 2)USB CDC ECM Device without IAD and Mass storage - When I connect this device with MAC OS X I can see the host enumerates the device correctly and ECM interface is up. But this time I did not include mass storage and I did not send IAD. I sent device descriptor with class = 02( cdc) subclass =00 and protocol =00. Since I need the USB composite device functionality (CDC ECM + MAss Storage), what changes I have to make at the device side so that host( Mac OS X) enumerates all the interfaces present ? or Mac OS X requires vendor specific host side driver to parse the composite device and enumerate all the interfaces of the device? Thanks & Regards, Santosh _______________________________________________ Do not post admin requests to the list. They will be ignored. Usb mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
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