Part Number: AM3352
Tool/software: Linux
Hi
I am developing for a board based on the beaglebone black and I am looking for the most correct way for a userspace application (written in C) to detect that an SD card has been inserted (or indeed removed) .
Up until now i have been using the SD card to boot and run from
- ultimately it is intended that this will be used only for storing user data
I can see entries in dmesg when I remove/insert the card
[ 108.484135] mmc0: card 59b4 removed [ 109.638096] mmc0: new high speed SDHC card at address 59b4
but unfortunately as I am running from the card at present doing this means I cannot properly investgate the removed state.
I should be runing from an onboard location shortly, but in the meantime, does anyone have any advice or recommendations for how I might go about detecting that the SD card has been removed in a timely manner?
Thanks for any help.
All the best,
- Richard
