The short answer is that the .ko file is your object file linked with some kernel automatically generated data structures that are needed by the kernel. The .o file is the object file of your module – the result of compiling your C file. The kernel build system then automatically creates another C file with … Read more
I’m not completely sure: the eabi stands for the compilation of code which will run on bare metal arm core. the gnueabi stands for the compilation of code for linux For the gnueabi/gnueabi-hf part, I found an answer here. gcc-arm-linux-gnueabi is the cross-toolchain package for the armel architecture. This toolchain implies the EABI generated by … Read more
The ioctl function is useful for implementing a device driver to set the configuration on the device. e.g. a printer that has configuration options to check and set the font family, font size etc. ioctl could be used to get the current font as well as set the font to a new one. A user … Read more