X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=README;h=09822a317da8da4e71f8af460b1d305af4bcd9cd;hb=3ee15a51809998dda6bb94eea85237eb9fe698f0;hp=aee0f7371c423c8a48eb0546526be885bd410ac9;hpb=2ae23a280be660c5c3dc8addb7f61bf7c12242f7;p=oweals%2Fu-boot.git

diff --git a/README b/README
index aee0f7371c..09822a317d 100644
--- a/README
+++ b/README
@@ -977,9 +977,6 @@ The following options need to be configured:
 			Define this to use i/o functions instead of macros
 			(some hardware wont work with macros)
 
-		CONFIG_DRIVER_TI_EMAC
-		Support for davinci emac
-
 			CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
 			Define this if you have more then 3 PHYs.
 
@@ -3018,11 +3015,6 @@ Configuration Settings:
 	If defined, don't allow the -f switch to env set override variable
 	access flags.
 
-- CONFIG_USE_STDINT
-	If stdint.h is available with your toolchain you can define this
-	option to enable it. You can provide option 'USE_STDINT=1' when
-	building U-Boot to enable this.
-
 The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
 following configurations:
@@ -3943,6 +3935,17 @@ If CONFIG_REGEX is defined, the variable_name above is evaluated as a
 regular expression. This allows multiple variables to be connected to
 the same callback without explicitly listing them all out.
 
+The signature of the callback functions is:
+
+    int callback(const char *name, const char *value, enum env_op op, int flags)
+
+* name - changed environment variable
+* value - new value of the environment variable
+* op - operation (create, overwrite, or delete)
+* flags - attributes of the environment variable change, see flags H_* in
+  include/search.h
+
+The return value is 0 if the variable change is accepted and 1 otherwise.
 
 Command Line Parsing:
 =====================