Date: Mon, 23 Mar 2009 10:46:41 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: meslists@yahoo.fr Cc: freebsd-usb@freebsd.org Subject: Re: external DVD Rewriter Message-ID: <20090323.104641.-75255559.imp@bsdimp.com> In-Reply-To: <49C7AFFE.4060001@yahoo.fr> References: <49C7AFFE.4060001@yahoo.fr>
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In message: <49C7AFFE.4060001@yahoo.fr>
dan <meslists@yahoo.fr> writes:
: Hi !
:
: I recently added an external LG dvd rewriter to a clean FreeBSD 7.1
: installation.
:
: -------
: umass0: <HLDS Inc SuperMulti RW, class 0/0, rev 2.00/1.59, addr 2> on uhub3
: cd0 at umass-sim0 bus 0 target 0 lun 0
: cd0: <HL-DT-ST DVDRAM GE20LU10 FE05> Removable CD-ROM SCSI-0 device
: -------
:
: As soon as I installed the xorg + gnome 2 ports these `odd` messages
: started to continuously appear in ttyv0 :
:
: -------
: umass0: Unsupported ATAPI command 0x4a - trying anyway
: umass0: Unsupported ATAPI command 0x4a - trying anyway
: umass0: Unsupported ATAPI command 0x46 - trying anyway
: umass0: Unsupported ATAPI command 0x4a - trying anyway
: [....]
: umass0: Unsupported ATAPI command 0x4a - trying anyway
: [....]
: -------
:
: After investigating a bit, I suppose these messages are a kind of an
: answer from the umass driver to HAL inquiries ( ... disabling HAL the
: messages disappear).
:
: the doubts and questions are: ...is the command really an unsupported
: command or is it a bug ?
:
: In case it is a bug, to whom should I fill in a PR ?
Old usb printed this warning because of history. Originally it was an
error because the thumb drives were stupid POS at the time and any
command that they didn't understand would take an error path that hung
the device. Bad kharma. In time, I got tired of adding each new
command so that my dvd burner would work, so I just said "screw it,
this is a warning now, and if somebody's drive fraks up, then so be
it: they will know what's going on at least. Besides, people that try
to burn a CD/DVD on their 256MB flash drive don't need that much
protection: bad things happening to them isn't necessarily bad."
Usb in 8.0 I think eliminated the warning.
Warner
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