My app capture my CX3 UVC camera based on V4L2 , but I cannot find how to send vendor request API, it maybe much lower API , can Cypress FAE give me some advice?
Many of the examples use Vender commands in FX3 SDK. For example, UsbSpiGpioMode implements Vendor Commands for SPI flash operation. You should take a look into this example projects.
I know FX3 SDK,but when My app is based on V4L2 framwork, I cannot know how to send a customized control message, e.g. vendor or extention unit command.
In V4L2, all standard UVC cmds are supported, but I want to send vendor request or extension unit command, does Cypress know V4l2 METHOD to do for this case？