cross-compilingtoolchaintfliteimx8

when calling vxCreateContext(): Error: _OpenDevice(1249): FATAL: Failed to open device, errno=No such file or directory

I am tring to cross-compile tim-vx-imx. target machine is imx8plus from nxp. I have managed to obtain the ovxlib drivers (CLC, Gal, VSC, ArchModelSw, NNarchPerf, OpenVx and OpenVXU) from a prebuilt SDK aarch64-poky-linux-gcc. When running the unit_test provided by tim-vx-imx, I get this error

Error:

[     1] Failed to open device: No such file or directory, Try again...                                                [     2] Failed to open device: No such file or directory, Try again...                                               [     3] Failed to open device: No such file or directory, Try again...                                                 [     4] Failed to open device: No such file or directory, Try again...                                                 [     5] OpenDevice(1249): FATAL: Failed to open device, errno=No such file or directory.
Solution

  • The problem was with missing kernel support for GPU/NPU. To fix it you need to re-compile the kernel.