Tool/software: TI-RTOS
I use dm6446 VPFE driver to get picture from cmos sensor. it works well. I want to add an new feature to this camera.
for example, currently, I get picture format 640x480(VGA), I want to stop vpfe with command VIDIOC_STREAMOFF, and
configure the vpfe in format 1280x720(HD) . however, after I give out the command VIDIOC_STREAMON, the driver gives
the log " StartStreaming:ioctl:VIDIOC_STREAMON:: Input/output error"; I check up the vpfe driver, and find that a quenue is
empty(list_empty(&vpfe->dma_queue). Idon't know how to resolve it.
Furthermore, I close the driver, and reopen it, driver gives out the log "VIDIOC_STREAMON:: Permission denied". I check up
the dvsdk_2_00_00_22 for dm6446, its example just open a driver to get picture, then stop it. Did TI ever provide other example?
where to find a example project to configure the vpfe ?
