Hi, I have noticed this mailing list has been intensively used to discuss patch development discussion. So please let me know if I should move my question to more appropriate places. In order to experiment something I need to pretend that my phone has a super fast SD card (faster than what is available in the market). So I want to simulate it through desktop ramdisk (which is basically disk in memory). And here is basically my plan: 1. Get an USB-OTG enabled phone (say Samsung galaxy nexus) 2. Connect this phone to a desktop via USB. 3. Naturally this phone will have some kind of USB driver running. 4. In the desktop I run the File-backed Storage Gadget (FSG), which make an USB host to be an USB slave, and presents a block device interface to the host which is backed by a ramdisk. 5. In the phone, mount the FSG mass storage just as an ordinary disk. Does this plan seem feasible? (Leaving the USB transmission speed aside, just concerning making this thing working. I realize USB 2.0 could be a speed bottleneck here. But I want to give it a try anyway). Do you guys see any flows in it? And if this is indeed something possible, do I need to connect the phone and the desktop through an USB OTG cable (like this: http://www.amazon.com/T-Flash-Adapter-Samsung-GT-i9100-GT-N7000/dp/B005FUNYSA) and an USB host to host cable (like this: http://www.amazon.com/Plugable-USB-Easy-Transfer-Cable/dp/B005OTPVMY/ref=pd_sim_sbs_pc_1). Or is an ordinary USB to microUSB cable which we usually use to connect desktop and cellphone suffice? Thanks a lot! Suli -- Suli Yang Department of Physics University of Wisconsin Madison 4257 Chamberlin Hall Madison WI 53703 -- 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
