Hello, We are implementing a USB peripheral controller driver for our proprietary hardware, an ARM based SOC. I have read the Linux gadget page on the linux usb website. A few things that I could conclude were:
1. We should be using the Linux gadget framework for the same, like the way its done for "lh7a40x_udc.c" (an example). 2. We would like to expose ourselves as a mass storage device to the host, therefore we would be using the suitable gadgets, eg. file-storage.o. I have a few questions here: 1. Assuming that I am exposing it as a mass storage device. Lets say that my file-system is lying on the SD card, and USB is only a means to carry the transfer. Now how does the file-storage module know about the SD card. How do these interact with each other? Is there some user-space daemon running? 2. Assuming I were to expose this as a serial device to my PC. Now the bandwidth available on COMM ports is about 115Kbps while the USB bandwidth is about 12 Mbps. What would be the available bandwidth? My question arises from the fact that to use a serial device on the host side, I would be using the serial API's which could only be configured for the max serial bandwidth. Thanks & Regards. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
