Repair the b580 rule_EXE_insert, and note it for future TODO

Makefile

@@ -496,6 +496,13 @@ define rule_CAP_insert
 endef
 rule_CAP_insert_DEPS = 
 
+# TODO:
+# - it is unclear if the dependancies for the $2 ISO image used below are
+#   handled
+# - Similar to the prepare_iso_from_tpl, this looks like it has a bunch of
+#   logic due to some Lenovo images being broken.  Look into what is broken
+#   and see if it is patchable without a template.
+
 # Create a new EXE image with patches applied
 # This is specifically for B580 firmware where we have to combine a bootable DOS
 # ISO with a patched FL2 together into an ISO image
@@ -510,7 +517,6 @@ define rule_EXE_insert
     @cp -f --reflink=auto $(2).orig $@.tmp
     $(eval FAT_OFFSET := $(shell scripts/geteltorito -c $(2).orig 2>/dev/null))
     $(eval DOSFLASH := $(shell mdir -/ -b -i $(2).orig@@$(FAT_OFFSET) | grep -i DOSFLASH | head -1))
-    $(eval FILE_DIR := $(shell dirname `innoextract -l $@.orig | grep -i $(1:::%=%) | cut -d'"' -f2 | cut -b5-`))
 
     -rm -rf $@.orig.extract.tmp
     mkdir $@.orig.extract.tmp
@@ -519,7 +525,7 @@ define rule_EXE_insert
     mdeltree -i $@.tmp@@$(FAT_OFFSET) FLASH/
     mmd -i $@.tmp@@$(FAT_OFFSET) FLASH
     mcopy -o -s -m -i $@.tmp@@$(FAT_OFFSET) $@.orig.extract.tmp/DOSFLASH.EXE ::/FLASH/
-    mcopy -o -s -m -i $@.tmp@@$(FAT_OFFSET) $< ::/FLASH/$(subst $$,\$$,$(subst \\,,$(1:::%=%)))
+    mcopy -o -s -m -i $@.tmp@@$(FAT_OFFSET) $< ::/FLASH/$(1)
     rm -r $@.orig.extract.tmp
 
     cp --reflink=auto $< $<.tmp
@@ -528,7 +534,7 @@ define rule_EXE_insert
     touch --date="1980-01-01 00:00:01Z" $<.tmp $@.report.tmp $@.bat.tmp
     @# TODO - datestamp here could be the lastcommitdatestamp
 
-    ./scripts/ISO_copyFL2 to_iso $@.tmp $<.tmp $(subst $$,\$$,$(subst \\,,$(1:::%=%)))
+    ./scripts/ISO_copyFL2 to_iso $@.tmp $<.tmp $(1)
     -mdel -i $@.tmp@@$(FAT_OFFSET) ::EFI/Boot/BootX64.efi
     mcopy -t -m -o -i $@.tmp@@$(FAT_OFFSET) $@.report.tmp ::report.txt
     -mattrib -i $@.tmp@@$(FAT_OFFSET) -r -s -h ::AUTOEXEC.BAT

README.md

@@ -36,16 +36,6 @@ With the patches included here, you can install the classic keyboard
 hardware on many xx30 series laptops and make almost every key work properly.
 The only keys that are not working are Fn+F3 (Battery) and Fn+F12 (Hibernate)
 
-There are a small number of thinkpads with a model number
-from the "xx30" series that are using a completely different EC CPU and
-a different BIOS update strategy.  
-The Nuvotron EC has been analyzed by the [thinkpad-Lx30-ec project](https://github.com/leecher1337/thinkpad-Lx30-ec).
-This is known to be the case for at least the 
-L430, L530, B580, V480, V480c, V580, V580c and E330.
-Patches are included now, for documentation, please check the mentioned
-repository.
-
-
 * A full writeup of the hardware modifications needed can be found at:
     http://www.thinkwiki.org/wiki/Install_Classic_Keyboard_on_xx30_Series_ThinkPads
 
@@ -54,6 +44,12 @@ repository.
 * A video presenting how these thinkpad laptops were hacked is online:
     https://www.youtube.com/watch?v=Fzmm87oVQ6c
 
+* Reverse engineering details for the L430, L530, B580, V480, V480c, V580,
+  V580c and E330 models can be found in the [thinkpad-Lx30-ec project](https://github.com/leecher1337/thinkpad-Lx30-ec).
+  Patches for patching the genuine battery check on these have been
+  contributed from that project.  (These all have an Nuvotron EC, with a
+  different architecture to the original "classic" thinkpad models).
+
 Step-by-step instructions:
 --------------------------