linux-kernel - Re: New CD/DVD reports 'Can Play Audio NO'

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Message-ID: <48F441F0.90408@kernel.org>
Date:	Tue, 14 Oct 2008 15:53:36 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Nick Warne <nick@...sn.org>
CC:	linux-kernel@...r.kernel.org, D Bray <db1986@...ernetdog.org>,
	IDE/ATA development list <linux-ide@...r.kernel.org>
Subject: Re: New CD/DVD reports 'Can Play Audio    NO'

Nick Warne wrote:
> /messages
> Oct  5 11:54:13 sauron kernel: ata5: PATA max UDMA/133 cmd 0x1f0 ctl
> 0x3f6 bmdma 0xf400 irq 14
> Oct  5 11:54:13 sauron kernel: ata6: PATA max
> UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xf408 irq 15
> Oct  5 11:54:13 sauron kernel: ata5.00: ATAPI: TSSTcorp CDDVDW
> SH-S202J, SB00, max UDMA/66
> Oct  5 11:54:13 sauron kernel: ata5.01: ATAPI: Optiarc DVD RW AD-7200A,
> 1.06, max UDMA/66
> Oct  5 11:54:13 sauron kernel: ata5.00: configured for UDMA/66
> Oct  5 11:54:13 sauron kernel: ata5.01: configured for
> UDMA/66
> 
> /syslog
> Oct  5 11:54:13 sauron kernel: sr0: scsi3-mmc drive: 48x/48x writer
> dvd-ram cd/rw xa/form2 cdda tray
> Oct  5 11:54:13 sauron kernel: sr1:
> scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray
> 
> /proc/sys/dev/cdrom/info
> 
> drive name:             sr1     sr0
> drive speed:            48      48
> drive # of slots:       1       1
> Can close tray:         1       1
> Can open tray:          1       1
> Can lock tray:          1       1
> Can change speed:       1       1
> Can select disk:        0       0
> Can read multisession:  1       1
> Can read MCN:           1       1
> Reports media changed:  1       1
> Can play audio:         1       1
> Can write CD-R:         1       1
> Can write CD-RW:        1       1
> Can read DVD:           1       1
> Can write DVD-R:        1       1
> Can write DVD-RAM:      1       1
> Can read MRW:           1       1
> Can write MRW:          1       1
> Can write RAM:          1       1

Thanks.  sr.c just doesn't check whether the drive reports audio play
capability or not.  It just sets it while ide-cd actually checks for
the capability.  The drive is not reporting it while it can so ide-cd
needs blacklist entry for it.  Now that idecd has blacklist entry, all
should be fine.  Eh... I'm not sure whether we need to update sr to
follow what ide-cd is doing or not.

Thanks.

-- 
tejun
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