dilim/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2026-07-18 21:40:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

cdrom_id: suppress ID_CDROM_MEDIA_STATE=blank for plain non-writable CDROM media

Browse Source 
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
This commit is contained in:
Kay Sievers
2009-05-26 00:50:45 +02:00
parent bec7e07acc
commit d3c8231e73
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
extras/cdrom_id/cdrom_id.c
View File

@@ -426,8 +426,10 @@ static int cd_media_info(struct udev *udev, int fd)
info(udev, "disk type %02x\n", header[8]);
if ((header[2] & 3) < 4)
/* exclude plain CDROM, some fake cdroms return 0 for "blank" media here */
if (!cd_media_cd_rom && (header[2] & 3) < 4)
cd_media_state = media_status[header[2] & 3];
if ((header[2] & 3) != 2)
cd_media_session_next = header[10] << 8 | header[5];
cd_media_session_count = header[9] << 8 | header[4];