Hi Jan,
 > Right. That in itself is fine, but I'd still like to have readdir

 > return lowercase names here then.
you are in luck!
It just so happens that this is what happens when we use the patch

that Hirofumi and I just agreed on (ie. the case handling part of my

patch from May, combined with the current patch). 
I include it below. Can you please test it? It should be applied on

top of the previous patch. Note that you will not need to specify

shortname=winnt. In fact, if you don't specify any special options and

let the kernel default then you will get the behaviour you just

described.
Hirofumi-san, can you have a look at this too and see if it is how you

want to handle it? I built the patch against your fatfs-2.6 tree.
Cheers, Tridge
From 244a8ebe72288a261e68b5aea04a86793a2f11f4 Mon Sep 17 00:00:00 2001

From: Andrew Tridgell

Date: Fri, 3 Jul 2009 22:15:02 +1000

Subject: [PATCH] Force case handling when dualnames are disabled for greater compatibility
When CONFIG_VFAT_FS_DUALNAMES is not set and a 8.3 name is created,

force the use of the shortname=winnt option to allow for lowercase or

uppercase prefix and extensions without using a long name.
Signed-off-by: Andrew Tridgell

---

 fs/fat/namei_vfat.c |    9 +++++++--

 1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c

index 894f44d..9555a46 100644

--- a/fs/fat/namei_vfat.c

+++ b/fs/fat/namei_vfat.c

@@ -317,6 +317,11 @@ static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,

 	int sz = 0, extlen, baselen, i, numtail_baselen, numtail2_baselen;

 	int is_shortname;

 	struct shortname_info base_info, ext_info;

+	unsigned opts_shortname = opts->shortname;

+

+#ifndef CONFIG_VFAT_FS_DUALNAMES

+	opts_shortname = VFAT_SFN_CREATE_WINNT;

+#endif
 	is_shortname = 1;

 	INIT_SHORTNAME_INFO(&base_info);

@@ -429,9 +434,9 @@ static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,

 		if (vfat_find_form(dir, name_res) == 0)

 			return -EEXIST;
-		if (opts->shortname & VFAT_SFN_CREATE_WIN95) {

+		if (opts_shortname & VFAT_SFN_CREATE_WIN95) {

 			return (base_info.upper && ext_info.upper);

-		} else if (opts->shortname & VFAT_SFN_CREATE_WINNT) {

+		} else if (opts_shortname & VFAT_SFN_CREATE_WINNT) {

 			if ((base_info.upper || base_info.lower) &&

 			    (ext_info.upper || ext_info.lower)) {

 				if (!base_info.upper && base_info.lower)

--

1.6.0.4
--

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