SyntekUSBVideoCamera
Functions
stk11xx-dev-6a54.c File Reference

Driver for Syntek USB video camera. More...

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/kref.h>
#include <linux/usb.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include "stk11xx.h"
#include "stk11xx-dev.h"

Go to the source code of this file.

Functions

int dev_stk6a54_initialize_device (struct usb_stk11xx *dev)
 This function permits to initialize the device. More...
 
int dev_stk6a54_configure_device (struct usb_stk11xx *dev, int step)
 This function permits to configure the device. More...
 
int dev_stk6a54_camera_asleep (struct usb_stk11xx *dev)
 Wake-up the camera. More...
 
int dev_stk6a54_init_camera (struct usb_stk11xx *dev)
 This function initializes the device for the stream. More...
 
int dev_stk6a54_sensor_settings (struct usb_stk11xx *dev)
 This function permits to set default sensor settings. More...
 
int dev_stk6a54_camera_settings (struct usb_stk11xx *dev)
 This function permits to modify the settings of the camera. More...
 
int dev_stk6a54_set_camera_quality (struct usb_stk11xx *dev)
 This function permits to modify the settings of the camera. More...
 
int dev_stk6a54_set_camera_fps (struct usb_stk11xx *dev)
 This function permits to modify the settings of the camera. More...
 
int dev_stk6a54_start_stream (struct usb_stk11xx *dev)
 This function sets the device to start the stream. More...
 
int dev_stk6a54_reconf_camera (struct usb_stk11xx *dev)
 Reconfigure the camera before the stream. More...
 
int dev_stk6a54_stop_stream (struct usb_stk11xx *dev)
 This function sets the device to stop the stream. More...
 

Detailed Description

Driver for Syntek USB video camera.

Author
Nicolas VIVIEN
Date
2006-10-23
Version
v2.2.x
Note
Copyright (C) Nicolas VIVIEN
Licences

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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

SubVersion
$Date$ $Revision$ $Author$ $HeadURL$

Definition in file stk11xx-dev-6a54.c.

Function Documentation

int dev_stk6a54_camera_asleep ( struct usb_stk11xx dev)

Wake-up the camera.

Parameters
devDevice structure
Returns
0 if all is OK

This function permits to wake-up the device.

Definition at line 267 of file stk11xx-dev-6a54.c.

References usb_stk11xx_read_registry(), and usb_stk11xx_write_registry().

Referenced by dev_stk11xx_camera_asleep().

int dev_stk6a54_camera_settings ( struct usb_stk11xx dev)

This function permits to modify the settings of the camera.

Parameters
devDevice structure
Returns
0 if all is OK

This functions permits to modify the settings :

  • brightness
  • contrast
  • white balance
  • ...

Definition at line 436 of file stk11xx-dev-6a54.c.

Referenced by dev_stk11xx_camera_settings().

int dev_stk6a54_configure_device ( struct usb_stk11xx dev,
int  step 
)

This function permits to configure the device.

Parameters
devDevice structure
stepThe step of configuration [0-11]
Returns
0 if all is OK

The configuration of device is composed of 12 steps. This function is called by the initialization process.

We don't know the meaning of these steps ! We only replay the USB log.

Definition at line 149 of file stk11xx-dev-6a54.c.

References dev_stk6a54_sensor_settings(), STK_DEBUG, usb_stk11xx_read_registry(), and usb_stk11xx_write_registry().

Referenced by dev_stk6a54_initialize_device().

int dev_stk6a54_init_camera ( struct usb_stk11xx dev)

This function initializes the device for the stream.

Parameters
devDevice structure
Returns
0 if all is OK

It's the start. This function has to be called at first, before enabling the video stream.

Definition at line 297 of file stk11xx-dev-6a54.c.

Referenced by dev_stk11xx_init_camera().

int dev_stk6a54_initialize_device ( struct usb_stk11xx dev)

This function permits to initialize the device.

Parameters
devDevice structure
Returns
0 if all is OK

This function must be called at first. It's the start of the initialization process. After this process, the device is completly initalized and it's ready.

This function is written from the USB log.

Definition at line 70 of file stk11xx-dev-6a54.c.

References dev_stk11xx_check_device(), dev_stk6a54_configure_device(), STK_INFO, usb_stk11xx_read_registry(), usb_stk11xx_set_feature(), and usb_stk11xx_write_registry().

Referenced by dev_stk11xx_initialize_device().

int dev_stk6a54_reconf_camera ( struct usb_stk11xx dev)

Reconfigure the camera before the stream.

Parameters
devDevice structure
Returns
0 if all is OK

Before enabling the video stream, you have to reconfigure the device.

Definition at line 501 of file stk11xx-dev-6a54.c.

References dev_stk11xx_camera_settings().

Referenced by dev_stk11xx_reconf_camera().

int dev_stk6a54_sensor_settings ( struct usb_stk11xx dev)

This function permits to set default sensor settings.

Parameters
devDevice structure
Returns
0 if all is OK

We set some registers in using a I2C bus. WARNING, the sensor settings can be different following the situation.

Definition at line 313 of file stk11xx-dev-6a54.c.

References dev_stk11xx_check_device(), STK_ERROR, usb_stk11xx_read_registry(), and usb_stk11xx_write_registry().

Referenced by dev_stk6a54_configure_device().

int dev_stk6a54_set_camera_fps ( struct usb_stk11xx dev)

This function permits to modify the settings of the camera.

Parameters
devDevice structure
Returns
0 if all is OK

This functions permits to modify the frame rate per second.

Definition at line 470 of file stk11xx-dev-6a54.c.

Referenced by dev_stk11xx_set_camera_fps().

int dev_stk6a54_set_camera_quality ( struct usb_stk11xx dev)

This function permits to modify the settings of the camera.

Parameters
devDevice structure
Returns
0 if all is OK

This functions permits to modify the settings :

  • brightness
  • contrast
  • white balance
  • ...

Definition at line 455 of file stk11xx-dev-6a54.c.

Referenced by dev_stk11xx_set_camera_quality().

int dev_stk6a54_start_stream ( struct usb_stk11xx dev)

This function sets the device to start the stream.

Parameters
devDevice structure
Returns
0 if all is OK

After the initialization of the device and the initialization of the video stream, this function permits to enable the stream.

Definition at line 486 of file stk11xx-dev-6a54.c.

Referenced by dev_stk11xx_start_stream().

int dev_stk6a54_stop_stream ( struct usb_stk11xx dev)

This function sets the device to stop the stream.

Parameters
devDevice structure
Returns
0 if all is OK

You use the function start_stream to enable the video stream. So you have to use the function stop_strem to disable the video stream.

Definition at line 519 of file stk11xx-dev-6a54.c.

Referenced by dev_stk11xx_stop_stream().