Let's assume your Block Device is an ATA Hard Disk and you're using FreeBSD 6.0 like me.
Take a look at <sys/ata.h> and you'll see a large fully-commented structure, "struct ata_params", which is used to return the information from the ATA "IDENTIFY DEVICE" command using something like: "ioctl(DevFil,IOCATAGPARM,&Parms);" This probably tells you everything you need. Plus IOCATAGPARM also returns CD/DVD Drive information using the related IDENTIFY PACKET DEVICE command. For further details consult the T13 Website. For ATA/ATAPI you might start with: "T13 1153D Revision 18" "Information Technology - AT Attachment with Packet Interface Extension (ATA/ATAPI-4)". Though there are later versions: "T13 1321D" (ATA/ATAPI-5) and "T13 1410D" (ATA/ATAPI-6). Whatever device you have there's probably some Hardware Command which gives you all the technical details. Faictz Ce Que Vouldras: Frank Mitchell -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.3/374 - Release Date: 23/06/2006 _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
