ok alexander...i have an anothere doubt....you told that "usermode programmer shouldn't care what types of video devices are installed on the system..And it also simplifies writing drivers for video devices: all the stuff regarding interactions between kernel and applications is already done in V4L2"
but i have an zebronics webcam...the driver for that webcam is "zc0301"...whether this webcam will work without this "zc0301" driver....? " --- On Fri, 2/1/09, Alexander Potashev <[email protected]> wrote: From: Alexander Potashev <[email protected]> Subject: Re: xawtv To: "niamathullah sharief" <[email protected]> Cc: "Kernel newbies" <[email protected]> Date: Friday, 2 January, 2009, 6:56 PM On 17:49 Fri 02 Jan , niamathullah sharief wrote: > > ok...can you tell me what is "video4linux2" is?is it a driver to capture the image?or something else? video4linux2 is Linux kernel subsystem, it registers video device class and provides an abstract API to the applications, so that a usermode programmer shouldn't care what types of video devices are installed on the system. And it also simplifies writing drivers for video devices: all the stuff regarding interactions between kernel and applications is already done in V4L2. Thus, V4L2 is a layer between hardware drivers and kernel API (syscalls -- mostly ioctl, files in /sys, ...) Link grabbed from linux-2.6/Documentation/video4linux/API.html: http://www.linuxtv.org/downloads/video4linux/API/V4L2_API Alexander Get rid of Add-Ons in your email ID. Get [email protected]. Sign up now! http://in.promos.yahoo.com/address
