ssize_t megaraid_sysfs_show_ldnum (struct device * dev, struct device_attribute * attr, char * buf);
Display the logical drive number for the device in question, if it a valid logical drive. For physical devices, ``-1'' is returned The logical drive number is displayed in following format
<SCSI ID> <LD NUM> <LD STICKY ID> <APP ADAPTER HANDLE> <int> <int> <int> <int>
param dev : device object representation for the scsi device param buf : buffer to send data to