generic usb camera driver

complete the communication.The so-called function driver is what this USB device is for, such as a USB camera, or a USB keyboard.function driven on the bus driver above, the USB interf

host, only one device can communicate with the host at the same time. Manage the external USB device via the USB host controller. USB controller is actually composed of USB controller hardware +USB Controller software. The USB h

,Uvc_ctrl_data (CTRL, Uvc_ctrl_data_current),Ctrl->info->size);3. Videostreaming interface is used to obtain video data and can also be used to select Fromat/frame (vs may have multiple format, one format supports multiple frames, and frame is used to represent resolution information)This can be accessed through a similar function:ret = __uvc_query_ctrl (Video->dev/* which USB device */, set_cur, 0,Video->streaming->intfnum/* Which interface: VS */,Pr

This article refers to the camera (WEBCAM), especially the USB camera.Under Windows, the camera driver is developed and provided by the manufacturer. But under Linux, with limited business interests, few vendors are willing to provide camera-driven support. This does not pre

Tags: node strong process CTI Mutex this debug driver iceThe Android system will have a front-facing camera and a rear camera definition, the camera is divided into the SOC type of camera and USB

USB urb (USB request block) Kernel 2.6.29.4The USB device driver code communicates with all USB devices through urb. Urb uses the struct urb structure description (include/Linux/USB. h ). Urb sends or receives data asynchronously

Because the USB driver in Linux is already very complete,You only need to follow the following configuration. After the configuration, recompile the kernel and install it on the Development Board. 1. Modify make menuconfig System type --> Input core support --> SCSI device support ---> [*] Legacy/proc/SCSI/support * ** SCSI support type (disk, tape, CD-ROM

contain a struct device structure.The following is the directory tree of My USB mouse in sysfs: /Sys/devices/pci0000: 00/0000: 00: 1A. 0/usb3/3-1 (indicating the usb_device structure) . | -- 3-. 0 (USB _ interface corresponding to the mouse) | -- 0003: 046d: c018.0003 | -- Driver-> http://www.cnblogs.com/http://www.cnblogs.com/http://www.cnblogs.com/../bus/hid/d

Linux-USB Gadget OverviewThe Linux-USB Gadget driver framework (hereinafter referred to as gadget) provides software functions for devices defined by the USB protocol.Compared with the Linux USB host driver, the gadget

Hardware driver in Linux system-USB device (on) There are more and more USB devices, while Linux is still not completely plug-and-play in hardware configuration. how to configure and use Linux is becoming a major problem for us. This article describes how to use and configure the driver and how to compile the

years of embedded project development engineering experience, worked at a large research institute in China, he has been engaged in embedded project development in China and outside China for a long time and is a first-line senior engineer. Familiar with windows/Linux/Android development, familiar with ARM, PowerPC, MIPS series and other platforms. I have been engaged in Instrumentation Control and transportation control systems for a long time. I have participated in dozens of large-scale embe

Capture (1);//1--USB is limited, no USB on the network, if using a notebook;-1 select multiple camera interfaces; 0 Default-camera, if using a laptop camera) Actually 0,1 ... Device ID number see WIN7 under Device Manager-image devices, corresponding search quotes , startin

of the complexity of a single USB physical device, the representation of the device in sysfs is also very complex. Both the physical USB device (represented by struct usb_device) and a single USB interface (represented by struct usb_interface) appear in sysfs as a single device because both structures contain a struct device structure. The following is the direc

This article refers to the camera (WEBCAM), especially the USB camera. Under Windows, the camera driver is developed and provided by the manufacturer. But under Linux, with limited business interests, few vendors are willing to provide

From: http://hi.baidu.com/cahbb/blog/item/6d76093498fe0790a61e120e.html After setting up the wince6 development environment, next we will test how to use the camera in wince6. I have collected a lot of information and learned a lot of useful things. Here I will record them to help others learn and use them later. // --------- The following is the content of the Microsoft website I have seen some questions about Windows Embedded ce DirectShow

SysfsBecause of the complexity of a single USB physical device, the device's representation in SYSFS is also very complex. Physical USB devices (represented by struct usb_device) and a single USB interface (represented by struct usb_interface) are present in SYSFS as a single device because both structures contain a struct device structure. The following is the

I'm going to do a s3c6410 webcam video capture project, as I took over the development Board, the use of kernel compilation may not be configured to configure the camera head driver, so I tried a lot of time to install the camera driver, because is a novice, so eat more pain, in the early days after a lot of attempts,