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
[email protected]
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