On Tue, 4 Jan 2005, Matthew Dharm wrote: > You can either add them to the SCSI core (which does the bus scanning), or > to a device-specific initializer (the last parameter in an unusual_devs.h > entry). > > Matt > > On Tue, Jan 04, 2005 at 01:53:03PM +0800, Hou Xiang ZHU wrote: > > Hi, > > > > I use FC2 and kernel is 2.6.8.1. > > > > I want to send 3 extra self-defined UFI command to USB memory stick before > > it send the normal command such as INQUIRY, etc.(these extra command used > > to unlock the secure USB stick!) > > > > I read the Mass storage device driver code and found that such command are > > processed in usb_stor_control_thread() of storage/usb.c, > > I guess these UFI command are comming from upper layer. But where do they > > exactly coming from? how can I send my own command to USB stick? > > > > I guess eventually I have to write a special driver for it, but currently I > > only want to modify the standard Mass storage driver to unlock it. > > > > thank you for your attention! > > > > Houxiang zhu
Another possibility is to write a userspace program. Use libusb to send the commands you need, and then use the USBDEVFS_CONNECT ioctl to cause the usb-storage driver to rebind to the stick. The advantage of this approach is that it's simpler and easier than writing a kernel driver. The disadvantage is that it won't be get run automatically unless you set up special hotplug scripts. Alan Stern ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
