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| author | Douglas Gilbert <dgilbert@interlog.com> | 2008-02-08 03:18:20 +0000 |
|---|---|---|
| committer | Douglas Gilbert <dgilbert@interlog.com> | 2008-02-08 03:18:20 +0000 |
| commit | 9a6e88da0a972f148c3f2923c372f0e5deb4707f (patch) | |
| tree | 4006696a9f2ec19498562158775bed2912dbd197 /doc/sg_vpd.8 | |
| parent | 1d5b601b2385057766df8f87e140388b08f630cd (diff) | |
| download | sg3_utils-9a6e88da0a972f148c3f2923c372f0e5deb4707f.tar.gz | |
add '--maxlen=' option to sg_vpd and sg_inq
git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@147 6180dd3e-e324-4e3e-922d-17de1ae2f315
Diffstat (limited to 'doc/sg_vpd.8')
| -rw-r--r-- | doc/sg_vpd.8 | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/doc/sg_vpd.8 b/doc/sg_vpd.8 index bdb1fd17..11f60174 100644 --- a/doc/sg_vpd.8 +++ b/doc/sg_vpd.8 @@ -1,11 +1,12 @@ -.TH SG_VPD "8" "April 2007" "sg3_utils\-1.24" SG3_UTILS +.TH SG_VPD "8" "February 2008" "sg3_utils\-1.26" SG3_UTILS .SH NAME sg_vpd \- fetches Vital Product Data (VPD) pages using a SCSI INQUIRY command .SH SYNOPSIS .B sg_vpd [\fI\-\-enumerate\fR] [\fI\-\-help\fR] [\fI\-\-hex\fR] [\fI\-\-ident\fR] -[\fI\-\-long\fR] [\fI\-\-page=PG\fR] [\fI\-\-quiet\fR] [\fI\-\-raw\fR] -[\fI\-\-verbose\fR] [\fI\-\-version\fR] \fIDEVICE\fR +[\fI\-\-long\fR] [\fI\-\-maxlen=LEN\fR] [\fI\-\-page=PG\fR] +[\fI\-\-quiet\fR] [\fI\-\-raw\fR] [\fI\-\-verbose\fR] [\fI\-\-version\fR] +\fIDEVICE\fR .SH DESCRIPTION .\" Add any additional description here .PP @@ -50,6 +51,17 @@ when decoding some VPD pages, give a little more output. For example the ATA Information VPD page only shows the signature (in hex) and the IDENTIFY (PACKET) DEVICE (in hex) when this option is given. .TP +\fB\-m\fR, \fB\-\-maxlen\fR=\fILEN\fR +where \fILEN\fR is the (maximum) response length in bytes. It is placed in the +cdb's "allocation length" field. If not given (or \fILEN\fR is zero) then +252 is used (apart from the ATA Information VPD page which defaults to 572) +and, if the response indicates this value is insufficient, another INQUIRY +command is sent with a larger value in the cdb's "allocation length" field. +If this option is given and \fILEN\fR is greater than 0 then only one INQUIRY +command is sent. Since many simple devices implement the INQUIRY command +badly (and do not support VPD pages) then the safest value to use for +\fILEN\fR is 36. See the sg_inq man page for the more information. +.TP \fB\-p\fR, \fB\-\-page\fR=\fIPG\fR where \fIPG\fR is the VPD page to be decoded or output. The \fIPG\fR argument can either be an abbreviation, a number or a pair or numbers separated by a @@ -107,7 +119,7 @@ Written by Doug Gilbert .SH "REPORTING BUGS" Report bugs to <dgilbert at interlog dot com>. .SH COPYRIGHT -Copyright \(co 2006\-2007 Douglas Gilbert +Copyright \(co 2006\-2008 Douglas Gilbert .br This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |