diff options
Diffstat (limited to 'main/busybox-initscripts/usbdisk_link')
| -rw-r--r-- | main/busybox-initscripts/usbdisk_link | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/main/busybox-initscripts/usbdisk_link b/main/busybox-initscripts/usbdisk_link new file mode 100644 index 000000000..750242bb5 --- /dev/null +++ b/main/busybox-initscripts/usbdisk_link @@ -0,0 +1,34 @@ +#!/bin/sh + +# NOTE: since mdev -s only provide $MDEV, don't depend on any hotplug vars. + +current=$(readlink usbdisk) + +if [ "$current" = "$MDEV" ] && [ "$ACTION" = "remove" ]; then + rm -f usbdisk usba1 +fi +[ -n "$current" ] && exit + +if [ -e /sys/block/$MDEV ]; then + SYSDEV=$(readlink -f /sys/block/$MDEV/device) + # if /sys device path contains '/usb[0-9]' then we assume its usb + # also, if its an usb without partitions we require FAT + if [ "${SYSDEV##*/usb[0-9]}" != "$SYSDEV" ]; then + # do not create link if there is not FAT + dd if=/dev/$MDEV bs=512 count=1 2>/dev/null | strings | grep FAT >/dev/null || exit 0 + + ln -sf $MDEV usbdisk + # keep this for compat. people have it in fstab + ln -sf $MDEV usba1 + fi + +elif [ -e /sys/block/*/$MDEV ] ; then + PARENT=$(dirname /sys/block/*/$MDEV) + SYSDEV=$(readlink -f $PARENT/device) + if [ "${SYSDEV##*/usb[0-9]}" != "$SYSDEV" ]; then + ln -sf $MDEV usbdisk + # keep this for compat. people have it in fstab + ln -sf $MDEV usba1 + fi +fi + |