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session media
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we cannot be sure for xvd*
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On Sat, Apr 17, 2010 at 18:26, Mike Brudevold <mike@brudevold.com> wrote:
> My CD-RW drive experiences a problem in that it automatically closes
> after opening if there is media in the drive. This only happens if
> there was media in the drive when it was last closed (an empty drive
> stays open).
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> cd_profiles: current profile 0x02
> cd_profiles: profile 0x02 <ignored>
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Do not pretend to have a media, when we receive a profile like 0x02,
which just means "Removable disk".
Thanks to Mike Brudevold for the initial patch.
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Signed-off-by: Mike Brudevold <mike@brudevold.com>
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Blank CDs do not have a TOC, thus will fail cd_media_toc() (at least with the
"Do not ignore errors from scsi_cmd_run()" fix). Thus probe the media state
first, so that we can properly detect blank media.
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scsi_cmd_run() can return positive error messages if we have CHECK_CONDITION
set and get the error code from the SCSI command result. So check the result
for non-zero, not for being negative.
This should fix another cause for "phantom" media in empty CD-ROM drives.
Thanks to Mike Brudevold <mike@brudevold.com> for spotting this!
https://launchpad.net/bugs/562978
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Commit 5c6954f is actually a no-op, since static variables are already zero'ed
by default anyway (but we keep it for clarity). The real difference was that a
build with -O0 wor while a build with -O2 didn't.
Turns out that some ioctls do not actually touch the result buffer in some
cases, so we need to zero the result buffers to avoid interpreting random da as
CD properties.
https://launchpad.net/bugs/559723
https://launchpad.net/bugs/561585
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In cases where cdrom_id does not go through the entire code path and one of the
probing functions returns -1 or exits early, the remaining variables were never
initialized. This caused effects like "phantom" audio CDs on empty drives, or
bogus data like ID_CDROM_MEDIA_TRACK_COUNT=22528.
Initialize the variables right away to avoid that.
Bug-Ubuntu: https://launchpad.net/bugs/559723
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Based on a patch from Harald Hoyer.
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We might fight about the device with polling processes, or other
users who probe the device. Retry a few times if the other one goes
away in the meantime.
Based on a patch from Harald Hoyer.
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This should prevent confusing drives during CD burning sessions. Based
on a patch from Harald Hoyer.
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Even when there is no medium in the drive, we should still check the
profiles supported by the drive. Otherwise we fail to detect things
like Blu-ray drives. See
https://bugzilla.gnome.org/show_bug.cgi?id=600273
for more information.
Signed-off-by: David Zeuthen <davidz@redhat.com>
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Fix spelling in docbook comments, code comments, and a local variable
name. Thanks to "ispell -h" for docbook HTML and "scspell" for source
code.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
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Instead of using multiple recursive Makefile.am files, use a single
Makefile.am that sets and builds all the basic suite of libraries and
binaries for udev. This reduces the number of files in the source tree, and
also reduces drastically the build time when using parallel-make.
With this setup, all the compile steps will be executed in parallel, and
just the linking stage will be (partially) serialised on the libraries
creation.
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These are mostly dummy man pages, without real content, some even
outdated. None of these tools are part of any offered public interface,
and they should not pretend to be by offering a man page.
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Some broken fake cdrom drives return ID_CDROM_MEDIA_STATE=blank.
$ /lib/udev/cdrom_id -d /dev/sr1
main: probing: '/dev/sr1'
cd_inquiry: INQUIRY: [Nokia ][S60 ][1.0 ]
cd_profiles: GET CONFIGURATION: number of profiles 76
cd_profiles: current profile 0x08
cd_media_toc: READ TOC: len: 12
cd_media_toc: last track 1 starts at block 0
cd_media_info: disk type 00
ID_CDROM=1
ID_CDROM_MRW=1
ID_CDROM_MRW_W=1
ID_CDROM_MEDIA=1
ID_CDROM_MEDIA_CD=1
ID_CDROM_MEDIA_STATE=blank
Others work fine, but ID_CDROM_MEDIA_STATE is not needed for non-writable CDROM media:
$ /lib/udev/cdrom_id -d /dev/sr1
main: probing: '/dev/sr1'
cd_inquiry: INQUIRY: [SanDisk ][U3 Cruzer Micro ][8.02]
cd_profiles: GET CONFIGURATION: number of profiles 72
cd_profiles: current profile 0x08
cd_media_toc: READ TOC: len: 20
cd_media_toc: track=1 info=0x4(data) start_block=0
cd_media_toc: last track 1 starts at block 0
cd_media_info: disk type 00
ID_CDROM=1
ID_CDROM_MRW=1
ID_CDROM_MRW_W=1
ID_CDROM_MEDIA=1
ID_CDROM_MEDIA_CD=1
ID_CDROM_MEDIA_STATE=complete
ID_CDROM_MEDIA_SESSION_COUNT=1
ID_CDROM_MEDIA_TRACK_COUNT=1
ID_CDROM_MEDIA_TRACK_COUNT_DATA=1
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Some broken mobile phones offer a faked cdrom drive with a media
without any tracks.
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Include usage information on the -d/--debug flag. Also bump the date.
Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
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[...] running the command
`make maintainer-clean' should not delete `configure' even if
`configure' can be remade using a rule in the Makefile. More
generally, `make maintainer-clean' should not delete anything that
needs to exist in order to run `configure' and then begin to build
the program. This is the only exception; `maintainer-clean' should
delete everything else that can be rebuilt.
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"Hello world!" linked against libselinux parses /proc/mounts and
whatever else on startup, even when the lib is not needed at all.
Not funny! Get rid of that thing where it's not absolutely needed.
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