Hey guys, this should be a simple question. (I hope) I'm using usb_control_msg to issue a "Memory Request" from my usb audio device. (In adherence with the USB Device Class Definition for Audio Devices release 2.0 spec section 5.2.7.1 to be exact). I issue a usb_control_msg in the READ direction, and I provide *data pointing to a buffer to accept the data, and I provide wLength which is the size of this buffer. When I do this, the response is ALWAYS wLength, regardless of the data size. Is this correct? Or should the device return the data that is has, and return the size of that data instead of wLength every time? Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
