Hello Vishal, >> 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? Read the book named "USB Mass Storage Designing and Programming Devices and Embedded Hosts By Jan Axelson" The author has documented some SCSI commands. I think it may help.:). Though the bad part is its not freely avaliable. :( >> 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? Well i can only guess, I may not be right though. Well the pop up you are witness it is due to fact that the USB pendrive filesystem is mounted, when you are writing your own driver such a behavior is not witnessed,i really don't known why. Have you tried writing to Try referring to some linux device driver books if you are planning to start to write a driver yourself. And let me warn you its not easy. :(. Try referring this book given in the link, "http://lwn.net/Kernel/LDD3/."; I also started off in this manner but it resulted in hell lot of confusion. rather than editing the USB skeleton i would recommend you to start off with little USB basics in linux, The USB skeleton is not easy for beginners to understand. Go step by step you will be able to understand it. :). If you wanted to submit a bug try reading the REPORTING-BUGS present in the kernel source tree. Also try reading the kernel source tree Documentation for further details. The kernel source can be downloaded from www.kernel.org. I hope i have helped. :) -- Regards, Anil Nair -- 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
