Re: 2.6.24-rc2 displays incorrect DVD description

From: Ansgar Knappheide
Date: Fri Nov 23 2007 - 05:17:52 EST


Andrew Morton schrieb:
(cc linux-ide)

On Tue, 13 Nov 2007 15:48:21 -0500 (EST) steve@xxxxxxxxxxx wrote:

For example, 2.6.23.1:

Linux version 2.6.23.1 (root@jupiter) (gcc version 4.2.2) #1 SMP PREEMPT
Fri Oct 26 13:09:09 CDT 2007
kernel: hdd: HP DVD Writer 1040d, ATAPI CD/DVD-ROM drive
kernel: hdd: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache,
UDMA(66)

and

2.6.24-rc2:

Linux version 2.6.24-rc2 (ironman@jupiter) (gcc version 4.2.2) #1 SMP
PREEMPT Fri Nov 9 20:41:37 CST 2007
kernel: hdd: HP DVD Writer 1040d, ATAPI CD/DVD-ROM drive
kernel: hdd: ATAPI 126X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache,
UDMA(66)

The drive seems to work correctly, reading and writing just fine. I just
happened to notice this and thought I'd pass it along.

One other odd thing while looking through the logs, 2.6.23.1 has also
reported the drive as follows:

Linux version 2.6.23.1 (root@jupiter) (gcc version 4.2.2) #1 SMP PREEMPT
Fri Oct 26 13:09:09 CDT 2007
kernel: hdd: HP DVD Writer 1040d, ATAPI CD/DVD-ROM drive
kernel: hdd: ATAPI 32X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache,
UDMA(66)

Any idea what is going on here? It's being reported as 48X, 126X, and 32X.


If it's only the speed value in the description, perhaps you had different medias (no medium, CD-ROM, DVD-VIDEO, CD-R, CD-RW, ...) on this bootups in your drive, I have seen this changed speed value depending on insert medium in the past on some Liteon or Samsung drive.

MBR
Ansgar Knappheide
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