diff options
| -rw-r--r-- | sys/sys/serial.h | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/sys/sys/serial.h b/sys/sys/serial.h index 2e1411b..8c223af 100644 --- a/sys/sys/serial.h +++ b/sys/sys/serial.h @@ -38,7 +38,7 @@ * Indentification of modem control signals. These definitions match * the TIOCMGET definitions in <sys/ttycom.h> shifted a bit down, and * that identity is enforced with CTASSERT at the bottom of kern/tty.c - * Both the modem bits and delta bits must fit in 16 bit! + * Both the modem bits and delta bits must fit in 16 bit. */ #define SER_DTR 0x0001 /* data terminal ready */ #define SER_RTS 0x0002 /* request to send */ @@ -50,13 +50,15 @@ #define SER_DSR 0x0080 /* data set ready */ /* Delta bits, used to indicate which signals should/was affected */ -#define SER_DDTR (SER_DTR << 8) -#define SER_DRTS (SER_RTS << 8) -#define SER_DSTX (SER_STX << 8) -#define SER_DSRX (SER_SRX << 8) -#define SER_DCTS (SER_CTS << 8) -#define SER_DDCD (SER_DCD << 8) -#define SER_DRI (SER_RI << 8) -#define SER_DDSR (SER_DSR << 8) +#define SER_DELTA(x) ((x) << 8) + +#define SER_DDTR SER_DELTA(SER_DTR) +#define SER_DRTS SER_DELTA(SER_RTS) +#define SER_DSTX SER_DELTA(SER_STX) +#define SER_DSRX SER_DELTA(SER_SRX) +#define SER_DCTS SER_DELTA(SER_CTS) +#define SER_DDCD SER_DELTA(SER_DCD) +#define SER_DRI SER_DELTA(SER_RI) +#define SER_DDSR SER_DELTA(SER_DSR) #endif /* !_SYS_SERIAL_H_ */ |
