NAME
sg_read_buffer - send a 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. |
| -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 given an invalid one (e.g. ’--mode=xxx’). | |
| -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 © 2006-2007 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)
