From: Arnd Bergmann <arnd@arndb.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alexia Death <alexiadeath@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: Problem: non-SDHC 2GB SD cards are unreadable
Date: Mon, 14 Apr 2008 14:40:48 +0200 [thread overview]
Message-ID: <200804141440.48960.arnd@arndb.de> (raw)
In-Reply-To: <480343F2.3040401@zytor.com>
On Monday 14 April 2008, H. Peter Anvin wrote:
> Actually, I believe 2 GB (non-SDHC) *only* have 1024 byte sectors.
>
Right, I found out the same after reading the page pointed out by Wander,
and the older specifications. SD 2.0 SDHC requires 512 byte sectors now, but
the older standard is still used for 2GB cards.
Most USB card readers seem to translate the native sector size to 512 byte
sectors internally, and we've seen that the linux SCSI disk driver together
with the USB mass storage driver doesn't cope well with the device
Alexia is using.
Arnd <><
next prev parent reply other threads:[~2008-04-14 12:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-13 20:26 Problem: non-SDHC 2GB SD cards are unreadable Alexia Death
2008-04-13 20:42 ` Alan Cox
2008-04-13 21:32 ` Alexia Death
2008-04-14 0:45 ` Arnd Bergmann
2008-04-14 4:49 ` Alexia Death
2008-04-14 6:48 ` Arnd Bergmann
2008-04-14 11:45 ` H. Peter Anvin
2008-04-14 12:40 ` Arnd Bergmann [this message]
2008-04-15 23:23 ` Daniel Barkalow
2008-04-16 2:09 ` H. Peter Anvin
2008-04-16 2:49 ` Roger Heflin
2008-04-14 16:11 ` Lennart Sorensen
2008-04-14 6:08 ` Alexia Death
2008-04-14 9:03 ` Wander Winkelhorst
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