No event buffer left for EPCH

[HesselM]

mmal: mmal_port_event_get: vc.ril.camera(1:0) port 0x84fe10, no event buffer left for EPCH
mmalipc: mmal_vc_handle_event_msg: no event buffer available to receive event (2)

Error is generated when the camera_callback (or usercallback) functions takes to much time to process an update.

[Cyper77]

can you make an camera API for Tinkerboard like that?
like raspicam - camava

[HesselM]

In theory yes, but this lib contains several fine-tuned functions, operations and memory optimisations, specifically designed for the rpi BCM2835 MCU, the MMAL interface and the rpi camera. Porting this to the thinkerboard might be possible, but would require a large amount of reading, comparing, rewriting and testing, which quite probably won't happen, unless I need to have the developed options at a thinkerboard.

[Cyper77]

we need that very much. asian coders cant done with that, because their codes like a soup and a lot of arm cpu's in the market. but asus TB is a big one. armbian is promising for TB. but:
-there is no working mipi-csi imx219 low level driver
-havent got openMAX(mmal) API, only MPP without any hardware connection.
-finally we havent got any raspicam cv like top level API
if you do that you will be LEGEND. find TonyMac32 on armbian forum if you interest. ;)