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authormjacob <mjacob@FreeBSD.org>1999-02-05 08:06:05 +0000
committermjacob <mjacob@FreeBSD.org>1999-02-05 08:06:05 +0000
commit53c7300e25b298d95334fdedf184f071b0b9c28d (patch)
treea7e389081d280723a6723e52d6cd52f9371183e0 /share/man/man4/sa.4
parent07aef5baef32b273b52d0b425177e65409dcbdc4 (diff)
downloadFreeBSD-src-53c7300e25b298d95334fdedf184f071b0b9c28d.zip
FreeBSD-src-53c7300e25b298d95334fdedf184f071b0b9c28d.tar.gz
add a note about exclusive open
Diffstat (limited to 'share/man/man4/sa.4')
-rw-r--r--share/man/man4/sa.47
1 files changed, 6 insertions, 1 deletions
diff --git a/share/man/man4/sa.4 b/share/man/man4/sa.4
index d12dd0a2d..6eba8f0 100644
--- a/share/man/man4/sa.4
+++ b/share/man/man4/sa.4
@@ -23,7 +23,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.\" $Id: sa.4,v 1.12 1998/10/16 04:06:21 ken Exp $
+.\" $Id: sa.4,v 1.13 1999/02/05 07:48:26 mjacob Exp $
.\"
.Dd October 15, 1998
.Dt SA 4
@@ -74,6 +74,11 @@ command, reachable through the
.Sq Cm offline
command of
.Xr mt 1 .
+.El
+.Pp
+It should be noted that tape devices are exclusive open devices, except in
+the case where a control mode device is opened. In the latter case, exclusive
+access is only sought when needed (e.g., to set parameters).
.Sh SUB-MODES
Bits 0 and 1 of the minor number are interpreted as
.Sq sub-modes .
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