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SG_READ_BUFFER(8) SG3_UTILS SG_READ_BUFFER(8)
NAME
sg_read_buffer - send SCSI READ BUFFER command
SYNOPSIS
sg_read_buffer [--help] [--hex] [--id=ID] [--length=LEN] [--mode=MO] [--offset=OFF]
[--raw] [--verbose] [--version] DEVICE
DESCRIPTION
Sends a SCSI READ BUFFER command to the DEVICE, and if there is a response either decodes
it, prints it in hexadecimal or sends it in binary to stdout. If a response is received
for a "descriptor" mode then, in the absence of --hex and --raw, it is decoded. Response
for non-descriptor modes are output in hexadecimal unless the --raw option is given.
OPTIONS
Arguments to long options are mandatory for short options as well.
-h, --help
output the usage message then exit. If used multiple times also prints the mode
names and their acronyms.
-H, --hex
output the response in hexadecimal. When given twice the response is output in hex
with the corresponding representation in ASCII to the right of each line.
-i, --id=ID
this option sets the buffer id field in the cdb. ID is a value between 0 (default)
and 255 inclusive.
-l, --length=LEN
where LEN is the length, in bytes, that is placed in the "allocation length" field
in the cdb. The default value is 4 (bytes). The device may respond with less bytes.
-m, --mode=MO
this option sets the mode field in the cdb. MO is a value between 0 (default) and
31 inclusive. Alternatively an abbreviation can be given. To list the available
mode abbreviations use an invalid one (e.g. '--mode=xxx'). As an example, to fetch
the read buffer descriptor give '--mode=desc' .
-o, --offset=OFF
this option sets the buffer offset field in the cdb. OFF is a value between 0
(default) and 2**24-1 . It is a byte offset.
-r, --raw
if a response is received then it is sent in binary to stdout.
-v, --verbose
increase the level of verbosity, (i.e. debug output).
-V, --version
print the version string and then exit.
NOTES
All numbers given with options are assumed to be decimal. Alternatively numerical values
can be given in hexadecimal preceded by either "0x" or "0X" (or has a trailing "h" or
"H").
EXIT STATUS
The exit status of sg_read_buffer is 0 when it is successful. Otherwise see the
sg3_utils(8) man page.
AUTHORS
Written by Luben Tuikov and Douglas Gilbert.
REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>.
COPYRIGHT
Copyright (C) 2006-2012 Luben Tuikov and Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
sg_write_buffer(sg3_utils)
sg3_utils-1.35 November 2012 SG_READ_BUFFER(8)
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