/* * i2c-core.h - interfaces internal to the I2C framework * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301 USA. */ #include <linux/rwsem.h> struct i2c_devinfo { struct list_head list; int busnum; struct i2c_board_info board_info; }; /* board_lock protects board_list and first_dynamic_bus_num. * only i2c core components are allowed to use these symbols. */ extern struct rw_semaphore __i2c_board_lock; extern struct list_head __i2c_board_list; extern int __i2c_first_dynamic_bus_num;