sn9c20x.h

   1 /**
   2  * @file sn9c20x.h
   3  * @author Dave Neuer
   4  * @date 2008-03-02
   5  * @version v0.0.0
   6  *
   7  * @brief Common functions and data for the Sonix SN9C20x webcam bridge chips.
   8  *
   9  * @note Copyright (C) Dave Neuer
  10  *
  11  * @par Licences
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  26  */
  27
  28 #ifndef SN9C20X_H
  29 #define SN9C20X_H
  30
  31 #define SN9C20X_I2C_400KHZ      0x01
  32 #define SN9C20X_I2C_READ        0x02
  33 #define SN9C20X_I2C_READY       0x04
  34 #define SN9C20X_I2C_ERROR       0x08
  35 #define SN9C20X_I2C_2WIRE       0x80
  36
  37 int sn9c20x_initialize_i2c(struct usb_microdia * dev, __u8 flags, __u8 slave);
  38
  39 int sn9c20x_write_i2c_data(struct usb_microdia * dev, __u8 slave, __u8 nbytes,
  40         __u8 address, __u8 flags, const __u8 [nbytes]);
  41
  42 int sn9c20x_read_i2c_data(struct usb_microdia * dev, __u8 slave, __u8 nbytes, __u8 address,
  43         __u8 flags, __u8 * result);
  44
  45 #endif