Le 23/09/2014 16:46, Brice Goglin a écrit : > Le 23/09/2014 16:38, Guy Streeter a écrit : >> I know that udev gathers this information: >> >> # ll /sys/block/sda/bdi >> lrwxrwxrwx. 1 root root 0 Sep 23 09:33 /sys/block/sda/bdi -> >> ../../../../../../../../virtual/bdi/8:0 >> # grep SERIAL '/run/udev/data/b8:0' >> E:ID_SERIAL=SAMSUNG_MZ7TD256HAFV-000L9_S17LNSADC13325 >> E:ID_SERIAL_SHORT=S17LNSADC13325 >> >> So you could get it from udev or gather it the same way udev does. If you >> want to know how udev does it, I can research that. > If you can get more information, that'd be great. I wonder if they are > using ioctls to retrieve these, I can't find anything in sysfs even > though udev has similar info on my machines. >
Indeed there's a struct hd_driveid in linux/hdreg.h that you get with ioctl HDIO_GET_IDENTITY on the device. There's also a libblkid that may help. Brice
