Removing write protect from a seagate hard drive

[Jens Neu]

On Wed, 21 Nov 2012 06:29:44 +0100, users-bounces at lists.fedoraproject.org wrote:
> Is there a system util to use to issue
> a command to a hard drive to remove
> write protect?

What kind of write protect do you mean? I have never heard from a software write protect in common hard disks. I've seen quite a lot IDE Compact Flash "disks" that have hardware switches for this but not PATA or SATA hdds
-jens