ext "XKEYBOARD" request XkbUseExtension = 0 ( wanted_major: u16, wanted_minor: u16, ) { supported: u8, server_major: u16, server_minor: u16, @pad 20, } request XkbPerClientFlags = 21 ( device_spec: u16, @pad 2, change: u32, value: u32, ctrls_to_change: u32, auto_ctrls: u32, auto_ctrls_values: u32, ) { device_id: u8, supported: u32, value: u32, auto_ctrls: u32, auto_ctrls_values: u32, @pad 8, }