On Tue, 6 May 2014, Peter Chen wrote: > 3. Besides, I have tried two configurations, and each configuration with > one function, I find the host PC always set configuration 1 (The first > configuration), any ways to switch configuration at host > side? libusb? You can switch configurations on a Linux host by writing to a sysfs file: echo N >/sys/bus/usb/devices/.../bConfigurationValue where N is the bConfigurationValue of the config you want to use and "..." is the pathname for the device. Alan Stern -- 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
