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Message-Id: <433d073fa982174a19783c2e59412b724e2cf946.1583136624.git.mchehab+huawei@kernel.org>
Date: Mon, 2 Mar 2020 09:16:00 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
linux-scsi@...r.kernel.org
Subject: [PATCH 27/42] docs: scsi: convert scsi-changer.txt to ReST
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
Documentation/scsi/index.rst | 1 +
.../{scsi-changer.txt => scsi-changer.rst} | 36 ++++++++++---------
drivers/scsi/Kconfig | 2 +-
3 files changed, 22 insertions(+), 17 deletions(-)
rename Documentation/scsi/{scsi-changer.txt => scsi-changer.rst} (87%)
diff --git a/Documentation/scsi/index.rst b/Documentation/scsi/index.rst
index 29e211ee9145..635a3b3c5e90 100644
--- a/Documentation/scsi/index.rst
+++ b/Documentation/scsi/index.rst
@@ -31,5 +31,6 @@ Linux SCSI Subsystem
NinjaSCSI
ppa
qlogicfas
+ scsi-changer
scsi_transport_srp/figures
diff --git a/Documentation/scsi/scsi-changer.txt b/Documentation/scsi/scsi-changer.rst
similarity index 87%
rename from Documentation/scsi/scsi-changer.txt
rename to Documentation/scsi/scsi-changer.rst
index ade046ea7c17..ab60e7e61a6c 100644
--- a/Documentation/scsi/scsi-changer.txt
+++ b/Documentation/scsi/scsi-changer.rst
@@ -1,4 +1,6 @@
+.. SPDX-License-Identifier: GPL-2.0
+========================================
README for the SCSI media changer driver
========================================
@@ -28,15 +30,17 @@ The SCSI changer model is complex, compared to - for example - IDE-CD
changers. But it allows to handle nearly all possible cases. It knows
4 different types of changer elements:
- media transport - this one shuffles around the media, i.e. the
+ =============== ==================================================
+ media transport this one shuffles around the media, i.e. the
transport arm. Also known as "picker".
- storage - a slot which can hold a media.
- import/export - the same as above, but is accessible from outside,
+ storage a slot which can hold a media.
+ import/export the same as above, but is accessible from outside,
i.e. there the operator (you !) can use this to
fill in and remove media from the changer.
Sometimes named "mailslot".
- data transfer - this is the device which reads/writes, i.e. the
+ data transfer this is the device which reads/writes, i.e. the
CD-ROM / Tape / whatever drive.
+ =============== ==================================================
None of these is limited to one: A huge Jukebox could have slots for
123 CD-ROM's, 5 CD-ROM readers (and therefore 6 SCSI ID's: the changer
@@ -131,24 +135,23 @@ timeout_init=<seconds>
timeout_move=<seconds>
timeout for all other commands (default: 120).
-dt_id=<id1>,<id2>,...
-dt_lun=<lun1>,<lun2>,...
+dt_id=<id1>,<id2>,... / dt_lun=<lun1>,<lun2>,...
These two allow to specify the SCSI ID and LUN for the data
transfer elements. You likely don't need this as the jukebox
should provide this information. But some devices don't ...
-vendor_firsts=
-vendor_counts=
-vendor_labels=
+vendor_firsts=, vendor_counts=, vendor_labels=
These insmod options can be used to tell the driver that there
are some vendor-specific element types. Grundig for example
does this. Some jukeboxes have a printer to label fresh burned
CDs, which is addressed as element 0xc000 (type 5). To tell the
- driver about this vendor-specific element, use this:
+ driver about this vendor-specific element, use this::
+
$ insmod ch \
vendor_firsts=0xc000 \
vendor_counts=1 \
vendor_labels=printer
+
All three insmod options accept up to four comma-separated
values, this way you can configure the element types 5-8.
You likely need the SCSI specs for the device in question to
@@ -162,13 +165,15 @@ Credits
I wrote this driver using the famous mailing-patches-around-the-world
method. With (more or less) help from:
- Daniel Moehwald <moehwald@....de>
- Dane Jasper <dane@...ic.net>
- R. Scott Bailey <sbailey@...di.eds.com>
- Jonathan Corbet <corbet@....net>
+ - Daniel Moehwald <moehwald@....de>
+ - Dane Jasper <dane@...ic.net>
+ - R. Scott Bailey <sbailey@...di.eds.com>
+ - Jonathan Corbet <corbet@....net>
Special thanks go to
- Martin Kuehne <martin.kuehne@...t.de>
+
+ - Martin Kuehne <martin.kuehne@...t.de>
+
for a old, second-hand (but full functional) cdrom jukebox which I use
to develop/test driver and tools now.
@@ -176,5 +181,4 @@ Have fun,
Gerd
---
Gerd Knorr <kraxel@...esex.org>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index d34c682e94cf..6cb9abb0898d 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -149,7 +149,7 @@ config CHR_DEV_SCH
don't need this for those tiny 6-slot cdrom changers. Media
changers are listed as "Type: Medium Changer" in /proc/scsi/scsi.
If you have such hardware and want to use it with linux, say Y
- here. Check <file:Documentation/scsi/scsi-changer.txt> for details.
+ here. Check <file:Documentation/scsi/scsi-changer.rst> for details.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
--
2.21.1
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