https://bugzilla.kernel.org/show_bug.cgi?id=219111 --- Comment #47 from Alan Stern (stern@xxxxxxxxxxxxxxxxxxx) --- The two schemes are methods for initializing the device. This happens before the configuration information is transferred, because the kernel can't communicate with the device until it has been initialized. The scheme works if the kernel is able to communicate without getting any errors. If the device then says it has only one configuration, the kernel will believe it. While it is possible in theory to replicate the initialization schemes manually, in practice it would be very difficult and it would require a large amount of programming. If you want to experiment with the schemes, by far the easiest way is to patch the kernel to make it do what you want. For example, you could change the kernel so that when it encounters a device with the Xone:23C's vendor and product IDs, it sets the number of configurations to 2. Then it would ask the device to transfer the information for both configs. But most likely the device would refuse to send the information for the second config, because it is still in its single-configuration mode. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.