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?
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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?
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
| Features | LSP | GIT |
|---|---|---|
| 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?