[8283] in linux-scsi channel archive
SCSI Generic problem: FOUND!
daemon@ATHENA.MIT.EDU (Eric Lee Green)
Wed Mar 1 16:20:26 2000
Message-ID: <38BD7C02.8B933C56@estinc.com>
Date: Wed, 01 Mar 2000 13:22:26 -0700
From: Eric Lee Green <eric@estinc.com>
MIME-Version: 1.0
To: linux-scsi@vger.rutgers.edu
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Silly me. I thought that if the result returned by the write() was okay, if
the # of bytes read as reported by the read() was okay, if the 'status'
variable in sg_header was okay, then everything was okay, no SCSI error
detected. How stupid of me. I have to check all of that, PLUS check the
sense_data buffer. And now, three lines of condition for the 'if' later, I'm
now accurately reporting an error when I send a REPORT_ELEMENT_STATUS command
to a hard drive (!).
Hopefully this message is getting archived so that next time someone goes into
'google' and does the query 'scsi generic linux sense', he'll get a response
that makes sense :-).
(Oh, I discovered this bit of trivia by digging around in the sg_utils package
and noticing it in one of the test programs... it doesn't appear to be
documented anywhere, though I may have overlooked said documentation, sigh).
--
Eric Lee Green eric@estinc.com
Software Engineer Visit our Web page:
Enhanced Software Technologies, Inc. http://www.estinc.com/
(602) 470-1115 voice (602) 470-1116 fax
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