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Dragonboard410c compile (own), after using the latest kernel can't unload modules

Time:09-22

Linaro @ linaro - alip:/usr/local/test $sudo rmmod among MSM - camss. Ko
Rmmod: ERROR:../libkmod/libkmod - module. C: 777 kmod_module_remove_module () could not remove 'msm_camss: Device or resource busy
Rmmod: ERROR: could not remove the module among MSM - camss. Ko: Device or resource busy

Not drive problem, the most simple module can unload, to kernel image can directly with's official website, download the kernel compilation, then generate dt, image image and finally the initrd. Img - 4.4.9 - linaro - lt - end generated burn inside the boot image, everything is normal can not uninstall the module, and driving module and normal operation,

CodePudding user response:

And process in the use of the driver, you lead to driver cannot uninstall, you can use the ps check process information, to see what are the processes in use to unload your driver, if there is a direct kill off process and unload,

CodePudding user response:

The probe driven by other equipment matching success, you first check the reason,
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