From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fumitoshi UKAI <ukai@debian.or.jp>
Date: Mon, 07 Jan 2002 17:08:51 +0000
Subject: Fixed munging of usb_bcdDevice for 2.2 kernels
Message-Id: <marc-linux-hotplug-101042341718901@msgid-missing>
List-Id: <linux-hotplug.vger.kernel.org>
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To: linux-hotplug@vger.kernel.org

>From debian user Tom Huckstep, I've receive the following patches:

diff -ur hotplug-2001_09_19/etc/hotplug/usb.agent hotplug-bcd_fix/etc/hotplug/usb.agent
--- hotplug-2001_09_19/etc/hotplug/usb.agent	Thu Sep 20 01:20:02 2001
+++ hotplug-bcd_fix/etc/hotplug/usb.agent	Thu Dec  6 23:51:05 2001
@@ -39,6 +39,8 @@
 #
 # HISTORY:
 #
+# 04-Dec-2001	Fixed munging of usb_bcdDevice for 2.2 kernels (Tom
+#		Huckstep)
 # 14-Mar-2001	Cleanup, bitmask the match_flags
 # 26-Feb-2001	Cleanup, support comments (Gioele Barabucci)
 # 23-Jan-2001	Update 2.2 handling; unfortunately there's no "feature
@@ -120,8 +122,28 @@
     # work around 2.2 brokenness
     # munges the usb_bcdDevice such that it is a integer rather
     # than a float: e.g. 1.0 become 0100
-    PRODUCT=`echo $PRODUCT | sed -e "s+\.\([0-9]\)$+.\10+" -e "s/\.$/00/" \
-                                  -e "s+/\([0-9]\)\.\([0-9][0-9]\)+/0\1\2+"`
+
+    # In PRODUCT=x/y/z if z has only one digit after a decimal point then a
+    # trailing zero is added.  If z has only one digit before a decimal
+    # point then a leading zero is added.  The decimal point is then
+    # removed.
+
+    # e.g. a.b  -> 0ab0
+    #     ab.c  -> cab0
+    #      a.bc -> 0abc
+    #     ab.cd -> abcd
+
+    # Why does the kernel give us this in such a weird format?  I don't
+    # know, but looking at usb/usb.c in your 2.2 kernel source may help.
+    # N.B. to_bcd()
+
+    # Add the trailing zero
+    PRODUCT=`echo $PRODUCT | sed -e "s+\.\([0-9]\)$+.\10+"`
+    # Add the leading zero
+    PRODUCT=`echo $PRODUCT | sed -e "s/\/\([0-9].[0-9][0-9]\)$/\/0\1/"`
+    # Remove the decimal point
+    PRODUCT=`echo $PRODUCT | sed -e "s/\/\([0-9][0-9]\)\.\([0-9][0-9]\)/\/\1\2/"`
+
     set `echo $PRODUCT | $AWK -F/ '{print "0x" $1, "0x" $2, "0x" $3 }'` ''
     usb_idVendor=$1
     usb_idProduct=$2

Thanks,
Fumitoshi UKAI

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