I set up a hot-key to call a tiny suid program that triggers the rescan. Works
great.
Put the following in rescan.c:
#include <stdio.h>
main(){
FILE *outfile;
outfile=fopen("/sys/bus/pci/rescan","w");
if (outfile != NULL){
fprintf(outfile,"1\n");
fclose(outfile);
}
else printf("permission denied\n");
}
then compile with:
gcc rescan.c -o rescan
sudo cp rescan /usr/local/bin
sudo chown root /usr/local/bin/rescan
sudo chmod u+s /usr/local/bin/rescan
then in system->preferences->keyboard shortcuts, create a custom
keybinding (Add). The command should point to /usr/local/bin/rescan,
and set whatever key combination you like - I used the gears button on
the top left of the keyboard, which produces 'super-L'
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https://bugs.launchpad.net/bugs/703180
Title:
SD card reader doesn't work on new Dell XPS
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