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DM368的_SysFs.c读写



请教一下

调用_SysFs.c里的writeSysFs()函数接口往/sys/class/davinci_display/ch%d/mode  写后读出仍是原值,是否是只读的?

  • 请教一下

    调用_SysFs.c里的writeSysFs()函数接口往/sys/class/davinci_display/ch%d/mode  里写进去的和读出来的不一致,里面的值好像改不了,不知是什么原因?

  • 你好,

    请问你使用的是哪个版本的驱动?

    下面wiki虽然不是DM36x的,但是也是davinci系列产品。

    http://processors.wiki.ti.com/index.php/DaVinci_PSP_03.02_Linux_Installation_User_Guide

    FeaturesLSPGIT
    Pixel Format Supports V4L2_PIX_FMT_YUV422UVP pixel format Supports V4L2_PIX_FMT_NV16 pixel format
    Standard Selection Output is selected using /sys/class/davinci_display/ch0/mode sysfs entry Standard is selected using VIDIOC_S_STD and VIDIOC_G_STD ioctls
  • 谢谢你的回复

    不知如何查看驱动的版本?用的开发包是DVSDK4_02版本的。

    不知V4L2_PIX_FMT_NV16等宏定义是给哪个模块赋值的?输入的RAW格式,转为YUV422,这里应该选RAW还是yuv?