ldattach: add N_PPS support

Add support for a line discipline name "PPS" selecting the
Pulse Per Second line discipline N_PPS (18). The number has been
reserved since kernel release 2.6.28, and the implementation is
finally going to be submitted for kernel release 2.6.31.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>

diff --git a/sys-utils/ldattach.8 b/sys-utils/ldattach.8
index 4ee62293db454795c1153a1bbe86845480cdb7c5..7afe51dde81461dcd496be0b8b20b9cdfa173187 100644 (file)
--- a/sys-utils/ldattach.8
+++ b/sys-utils/ldattach.8
@@ -35,7 +35,7 @@ With no arguments,
 .B ldattach
 prints usage information.
 .SH LINE DISCIPLINES
-As of kernel release 2.6.21, the following line disciplines are supported:
+Depending on the kernel release, the following line disciplines are supported:
 .TP
 .BR TTY ( 0 )
 The default line discipline,
@@ -80,6 +80,9 @@ Bluetooth HCI UART driver.
 .TP
 .BR GIGASET_M101 ( 16 )
 Driver for Siemens Gigaset M101 serial DECT adapter.
+.TP
+.BR PPS ( 18 )
+Driver for serial line Pulse Per Second (PPS) source.
 .SH OPTIONS
 .TP
 \fB-d\fP | \fB--debug\fP

diff --git a/sys-utils/ldattach.c b/sys-utils/ldattach.c
index 801dd1cb9cbe8852d6ff41bdd0ac2fe104488ffb..19f70fe62b791eddc69840ac25796e748b25b1e5 100644 (file)
--- a/sys-utils/ldattach.c
+++ b/sys-utils/ldattach.c
@@ -34,6 +34,10 @@
 # define N_GIGASET_M101 16
 #endif
 
+#ifndef N_PPS
+# define N_PPS 18
+#endif
+
 #ifndef ARRAY_SIZE
 # define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #endif
@@ -65,7 +69,8 @@ ld_table[] = {
        { "HCI",        N_HCI },
        { "GIGASET_M101",       N_GIGASET_M101 },
        { "GIGASET",    N_GIGASET_M101 },
-       { "M101",       N_GIGASET_M101 }
+       { "M101",       N_GIGASET_M101 },
+       { "PPS",        N_PPS },
 };
 
 /* look up line discipline code */