diff options
Diffstat (limited to 'drivers/media/video/usbvision/usbvision-i2c.h')
-rw-r--r-- | drivers/media/video/usbvision/usbvision-i2c.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/media/video/usbvision/usbvision-i2c.h b/drivers/media/video/usbvision/usbvision-i2c.h new file mode 100644 index 00000000000..a2df8dbdac5 --- /dev/null +++ b/drivers/media/video/usbvision/usbvision-i2c.h @@ -0,0 +1,58 @@ +/* + * I2C_ALGO_USB.H + * i2c algorithm for USB-I2C Bridges + * + * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> + * + * This module is part of usbvision driver project. + * Updates to driver completed by Dwaine P. Garden + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + +#ifndef I2C_ALGO_USB_H +#define I2C_ALGO_USB_H 1 + +#include <linux/i2c.h> + +struct i2c_algo_usb_data { + void *data; /* private data for lowlevel routines */ + int (*inb) (void *data, unsigned char addr, char *buf, short len); + int (*outb) (void *data, unsigned char addr, char *buf, short len); + + /* local settings */ + int udelay; + int mdelay; + int timeout; +}; + +#define I2C_USB_ADAP_MAX 16 + +int usbvision_i2c_usb_add_bus(struct i2c_adapter *); +int usbvision_i2c_usb_del_bus(struct i2c_adapter *); + +static inline void *i2c_get_algo_usb_data (struct i2c_algo_usb_data *dev) +{ + return dev->data; +} + +static inline void i2c_set_algo_usb_data (struct i2c_algo_usb_data *dev, void *data) +{ + dev->data = data; +} + + +#endif //I2C_ALGO_USB_H |