The patch changes the line discipline name registered in include/linux/tty.h Signed-off-by: Janusz Krzysztofik --- --- linux-2.6.31-rc5/include/linux/tty.h.orig 2009-08-05 21:44:33.000000000 +0200 +++ linux-2.6.31-rc5/include/linux/tty.h 2009-08-05 22:54:12.000000000 +0200 @@ -47,7 +47,7 @@ #define N_SLCAN 17 /* Serial / USB serial CAN Adaptors */ #define N_PPS 18 /* Pulse per Second */ -#define N_AMSDELTA 19 /* codec control over modem, board specific */ +#define N_V253 19 /* Codec control over voice modem */ /* * This character is the same as _POSIX_VDISABLE: it cannot be used as