I am working on Linux (Kernel Version 18.104.22.168) laptop.
After I inserted/did file io/removed a SD combo card, I got following errors:
mmcblk0: error -123 sending status command mmcblk0: error -123 sending read/write command, response 0x0, card status 0x0 mmcblk0: error -123 sending requesting status
Now, I would like to understand what these errors mean.
As I saw few standard error codes are located in arch/powerpc/boot/stdio.h and other scattered at various other places..
Is there any systematic way in Linux to track (& understand) the error codes (in the source) ?