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SubjectRe: Apacer SM/CF combo reader driver
	From: Fabien Grumelard <>
Subject: Re: Apacer SM/CF combo reader driver

> If you need the SM half, ask me again.

yes, this is what I want to use.

About the 07c4:a109 CF+SM Apacer LC1 reader:

I just checked status in 2.4.21.

The CF half words if you select CONFIG_USB_STORAGE_DATAFAB.
The SM hals works is you select CONFIG_USB_STORAGE_SDDR55
and apply a tiny patch to unusual devices:

diff -u --recursive --new-file -X /linux/dontdiff a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
--- a/drivers/usb/storage/unusual_devs.h Sun Jul 6 14:22:55 2003
+++ b/drivers/usb/storage/unusual_devs.h Mon Aug 11 12:50:26 2003
@@ -462,6 +462,14 @@

+UNUSUAL_DEV( 0x07c4, 0xa109, 0x0000, 0xffff,
+ "Datafab Systems, Inc.",
+ "USB to CF + SM Combo (LC1)",
UNUSUAL_DEV( 0x07c4, 0xa000, 0x0000, 0x0015,

[Note: the vanilla kernel setup still does not handle
composite devices like these - you need the twoluns
setup from the URL I gave if you want to use both CF and SM.
But if you are satisfied with having one, then you have it.]

[Note: if you select both CONFIG_USB_STORAGE_DATAFAB and
CONFIG_USB_STORAGE_SDDR55 then the order of the items in
unusual_devs.h will determine which is found first, so
whether you get CF or SM. That is why I put the entry "too early"
in the above.]
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