Hi there, I am trying to implement a communication between the host and a usb mass storage device using ADSC cmd. The device is using the g_mass_storage gadget driver. So far, broken pipe (-32) from the host side is all what I have got. My questions are: 1. Could the device support ADSC cmd even it is using SCSI transport instead of CBI transport? 2. Is this composite correct for the host to retrieve 1 byte response from the device using ADSC? usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0, // ADSC USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, // type 0, // value 0, // index buf, // recv buf 1, // size 10*HZ); // timeout Thanks, Dave Tian dave.jing.tian@xxxxxxxxx _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
