1 /* 2 * Backlight client to access backlight servers. 3 * 4 * Copyright (C) 2018 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include <l4/cxx/ipc_stream> 23 #include <l4/re/env> 24 25 #include "backlight-client.h" 26 27 int 28 Backlight_device_interface::disable() throw() 29 { 30 L4::Ipc::Iostream s(l4_utcb()); 31 32 return l4_error(s.call(cap(), Backlight_op_disable)); 33 } 34 35 int 36 Backlight_device_interface::enable() throw() 37 { 38 L4::Ipc::Iostream s(l4_utcb()); 39 40 return l4_error(s.call(cap(), Backlight_op_enable)); 41 } 42 43 int 44 Backlight_device_interface::set_brightness(int level) throw() 45 { 46 L4::Ipc::Iostream s(l4_utcb()); 47 48 s << level; 49 return l4_error(s.call(cap(), Backlight_op_set_brightness)); 50 }