2 files changed, 12 insertions, 3 deletions

diff --git a/docs/ctty.htm b/docs/ctty.htm
index 8f466cdde..3cb2dd2bd 100644
--- a/docs/ctty.htm
+++ b/docs/ctty.htm
@@ -9,6 +9,8 @@
 
 <p>Before looking at the Linux implementation, first a general Unix
 description of threads, processes, process groups and sessions.
+</p><p>
+(See also <a href="http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap11.html">General Terminal Interface</a>)
 </p><p>A session contains a number of process groups, and a process group
 contains a number of processes, and a process contains a number
 of threads.
@@ -277,6 +279,7 @@ and inspect it by
 Again, if TOSTOP is set but the background process ignores or blocks
 the SIGTTOU signal, or if its process group is orphaned (see below),
 then the write() returns an EIO error, and no signal is sent.
+[vda: correction. SUS says that if SIGTTOU is blocked/ignored, write succeeds. ]
 <p>
 </p><h3>Orphaned process groups</h3>
 
diff --git a/docs/mdev.txt b/docs/mdev.txt
index 2d03bd8b2..61f93c9df 100644
--- a/docs/mdev.txt
+++ b/docs/mdev.txt
@@ -51,19 +51,25 @@ device nodes if your system needs something more than the default root/root
 660 permissions.
 
 The file has the format:
-    <device regex>       <uid>:<gid> <permissions>
- or @<maj[,min1[-min2]]> <uid>:<gid> <permissions>
+        [-]<device regex>       <uid>:<gid> <permissions>
+or
+        @<maj[,min1[-min2]]>    <uid>:<gid> <permissions>
+or
+        $envvar=<regex>         <uid>:<gid> <permissions>
 
 For example:
-    hd[a-z][0-9]* 0:3 660
+        hd[a-z][0-9]* 0:3 660
 
 The config file parsing stops at the first matching line.  If no line is
 matched, then the default of 0:0 660 is used.  To set your own default, simply
 create your own total match like so:
+
         .* 1:1 777
 
 You can rename/move device nodes by using the next optional field.
+
         <device regex> <uid>:<gid> <permissions> [=path]
+
 So if you want to place the device node into a subdirectory, make sure the path
 has a trailing /.  If you want to rename the device node, just place the name.
         hda 0:3 660 =drives/