On Tue, Jun 17 2008, Tejun Heo wrote:
> According to MMC-3 (or any later versions) READ TOCs are mandatory
> commands and have nothing to do with CDC_PLAY_AUDIO. I have no idea
> why the check was put there in the first place but it now only breaks
> automatic actions on certain drives.
>
> Note that this test was only effective when ide-cdrom was being used
> as sr didn't mask CDC_PLAY_AUDIO according to the capabilities.
>
> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Acked-by: Jens Axboe <jens.axboe@xxxxxxxxxx>
> ---
> drivers/cdrom/cdrom.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
> index 69f26eb..11574c5 100644
> --- a/drivers/cdrom/cdrom.c
> +++ b/drivers/cdrom/cdrom.c
> @@ -1491,10 +1491,6 @@ static void cdrom_count_tracks(struct cdrom_device_info *cdi, tracktype* tracks)
> tracks->xa=0;
> tracks->error=0;
> cdinfo(CD_COUNT_TRACKS, "entering cdrom_count_tracks\n");
> - if (!CDROM_CAN(CDC_PLAY_AUDIO)) {
> - tracks->error=CDS_NO_INFO;
> - return;
> - }
> /* Grab the TOC header so we can see how many tracks there are */
> if ((ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header))) {
> if (ret == -ENOMEDIUM)
--
Jens Axboe
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