Hi, I've found this comment in f_acm.c, 2.6.27: * Note that even MS-Windows has some support for ACM. However, that * support is somewhat broken because when you use ACM in a composite * device, having multiple interfaces confuses the poor OS. It doesn't * seem to understand CDC Union descriptors. The new "association" * descriptors (roughly equivalent to CDC Unions) may sometimes help. Does this mean I will not be able to successfully connect a Linux box to a Windows PC via the Linux box's CDC ACM composite gadget serial driver? Also, there are direct references to the composite driver in f_acm.c, which tells me the following: -In Linux (2.6.27), a CDC ACM gadget serial driver MUST be a composite driver as well. Is this true? If so why is such tight coupling required? Please suggest an alternate list if this message is inappropriate for this list. Cheers, Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
