Hello Greg >> I believe I can change the Device descriptors in firmware, upload the new >> firmware and reboot the stick but wouldn't the usb subsystem have the old >> device descriptor from the previous hotplug/system boot? > Nope, the kernel reads the descriptor from the device when it is connected, > you can check this yourself by doing 'lsusb -v' when it is plugged in. I can't make this out. Consider the following: 1. Plug in the device but do -> not <- load the driver. (ie no firmware but code is running in rom)) Do a lsub -v. You get the first device descriptors. 2> Attach the driver and firmware is uploaded, adds more endpoints, and completely rearanges the device descriptor. Do a lsusb -v. Has the host usb subsystem automatically done a new scan or do you still get the original lsusb -v. > No need to do anything in the kernel, all should be fine as long as your > firmware is correct. All this might also be moot, since it is possible that I can rearrange the ep's but might not be able change the device descriptor, since routines in rom might need to access a specific address where the device descriptor resides. Bruce -- 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
