diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/scsi/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/scsi/scsi-changer.rst (renamed from Documentation/scsi/scsi-changer.txt) | 36 |
2 files changed, 21 insertions, 16 deletions
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 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@hdg.de> - Dane Jasper <dane@sonic.net> - R. Scott Bailey <sbailey@dsddi.eds.com> - Jonathan Corbet <corbet@lwn.net> + - Daniel Moehwald <moehwald@hdg.de> + - Dane Jasper <dane@sonic.net> + - R. Scott Bailey <sbailey@dsddi.eds.com> + - Jonathan Corbet <corbet@lwn.net> Special thanks go to - Martin Kuehne <martin.kuehne@bnbt.de> + + - Martin Kuehne <martin.kuehne@bnbt.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@bytesex.org> |