Hi, I am working on a USB mass storage driver for a pen drive. I have done coding as per the USB_skeleton.c file provided in Linux 3.2 source code. I could assign the driver to pen drive when pen driver is inserted in USB connector. I am stuck in data transfer, could not do the data transfer. During enumeration interface sub class is 06 i.e. SCSI transparent command set. Please find my questions below. 1. Where are these SCSI transparent command set documented? 2. Is there any sample code(apart from Linux source) which describes the SCSI transparent command set and mass storage driver? 3. When I connect the pen drive and associate my driver, pop up doesn't appear on the screen for this device. but when default driver(usb_storage) is used this pop up does appear. What I need to do here? Any thing other I need to take care here? Vishal N -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html