From: Jens Axboe <axboe@suse.de>
To: "Joseph N. Hall" <joseph@5sigma.com>
Cc: linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@transmeta.com>
Subject: Re: 4.7GB DVD-RAM geometry wrong?
Date: Wed, 15 Aug 2001 13:17:33 +0200 [thread overview]
Message-ID: <20010815131733.I545@suse.de> (raw)
In-Reply-To: <20010815111030Z271139-761+1405@vger.kernel.org>
In-Reply-To: <20010815111030Z271139-761+1405@vger.kernel.org>
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On Wed, Aug 15 2001, Joseph N. Hall wrote:
> I don't know if I'm doing this the right way or not. I did spend an hour
> or three googling for "linux dvd-ram" and the like, and all I came up with
> was a bunch of 2.2-specific stuff, until I found a usenet posting that
> said in effect "you can write to /dev/scd0". So I gave that a try
> and it worked. Sort of.
>
> I have a Panasonic DVD-RAM, LF-D201 (SCSI 4.7/9.4GB). I put in a
> 4.7GB type II cartridge (that's a single-sided disk), did 'mkfs
> /dev/scd0' and then mounted it, and ... I have a 2.2GB disk!
Attached patch should fix it, Linus please apply.
--
Jens Axboe
[-- Attachment #2: sr_cap-1 --]
[-- Type: text/plain, Size: 371 bytes --]
--- /opt/kernel/linux-2.4.9-pre4/drivers/scsi/sr_ioctl.c Thu Jul 5 20:28:17 2001
+++ drivers/scsi/sr_ioctl.c Wed Aug 15 13:15:21 2001
@@ -545,7 +545,7 @@
switch (cmd) {
case BLKGETSIZE:
- return put_user(scsi_CDs[target].capacity >> 1, (long *) arg);
+ return put_user(scsi_CDs[target].capacity, (long *) arg);
case BLKROSET:
case BLKROGET:
case BLKRASET:
next prev parent reply other threads:[~2001-08-15 11:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-15 11:10 4.7GB DVD-RAM geometry wrong? Joseph N. Hall
2001-08-15 11:17 ` Jens Axboe [this message]
2001-08-15 14:34 ` Hisaaki Shibata
2001-08-16 2:44 ` Hisaaki Shibata
2001-08-16 6:50 ` Jens Axboe
2001-08-16 7:53 ` Hisaaki Shibata
2001-08-16 8:10 ` Jens Axboe
2001-08-16 14:23 ` Hisaaki Shibata
2001-08-16 16:26 ` Hisaaki Shibata
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