diff options
Diffstat (limited to 'include/uapi/linux/serial.h')
| -rw-r--r-- | include/uapi/linux/serial.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/include/uapi/linux/serial.h b/include/uapi/linux/serial.h index 93eb3c496ff1..cea06924b295 100644 --- a/include/uapi/linux/serial.h +++ b/include/uapi/linux/serial.h @@ -52,11 +52,11 @@ struct serial_struct { #define PORT_16450 2 #define PORT_16550 3 #define PORT_16550A 4 -#define PORT_CIRRUS 5 /* usurped by cyclades.c */ +#define PORT_CIRRUS 5 #define PORT_16650 6 #define PORT_16650V2 7 #define PORT_16750 8 -#define PORT_STARTECH 9 /* usurped by cyclades.c */ +#define PORT_STARTECH 9 #define PORT_16C950 10 /* Oxford Semiconductor */ #define PORT_16654 11 #define PORT_16850 12 @@ -126,10 +126,26 @@ struct serial_rs485 { #define SER_RS485_TERMINATE_BUS (1 << 5) /* Enable bus termination (if supported) */ + +/* RS-485 addressing mode */ +#define SER_RS485_ADDRB (1 << 6) /* Enable addressing mode */ +#define SER_RS485_ADDR_RECV (1 << 7) /* Receive address filter */ +#define SER_RS485_ADDR_DEST (1 << 8) /* Destination address */ + __u32 delay_rts_before_send; /* Delay before send (milliseconds) */ __u32 delay_rts_after_send; /* Delay after send (milliseconds) */ - __u32 padding[5]; /* Memory is cheap, new structs - are a royal PITA .. */ + + /* The fields below are defined by flags */ + union { + __u32 padding[5]; /* Memory is cheap, new structs are a pain */ + + struct { + __u8 addr_recv; + __u8 addr_dest; + __u8 padding0[2]; + __u32 padding1[4]; + }; + }; }; /* |