Mark Lord wrote: > Tejun Heo wrote: >> >> OT but care to make -i and -I work equivalently? Such that -i reports >> more detailed info and user can dump stored id block. > > hdparm -I works just fine now.
No objection there. > hdparm -i requires the HDIO_GET_IDENTITY ioctl() from drivers/ide, > to retrieve the "boot time" copy of the identify block, before any > mods are made by the driver. But in recent years, drivers/ide has > broken it, in that it tries to maintain the "boot time" copy in sync > with the on-drive copy. Kinda makes -i pointless. > > Is there a way to retrieve the libata cached copy of the ID block? > How? Just implemented and posted patch for HDIO_GET_IDENTITY in an attempt to access ATAPI IDENTIFY block using hdparm. >> Support for IDENTIFY PACKET DEVICE would be nice too. > > It already does that, using HDIO_DRIVE_CMD to retrieve it > in the same way as for regular IDENTIFY DEVICE commands. Hmmm... My hdparm doesn't seem to do that. # hdparm -V hdparm v6.9 # hdparm -I /dev/sr0 /dev/sr0: HDIO_DRIVE_CMD(identify) failed: Input/output error Am I missing something? > In hdparm-7.0, I'll have it use ATA passthrough when possible > for most/all commands. Glad to hear. Happy new year. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
