DCMD_CHR_TCSETATTR, DCMD_CHR_TCSETATTRD, DCMD_CHR

Set terminal properties

Synopsis:

#include <sys/dcmd_chr.h>

#define DCMD_CHR_TCSETATTR    __DIOT(_CMD_IOCTL_TTY, 20, struct termios)  /* TIOCSETA */
#define DCMD_CHR_TCSETATTRD   __DIOT(_CMD_IOCTL_TTY, 21, struct termios)  /* TIOCSETAW */
#define DCMD_CHR_TCSETATTRF   __DIOT(_CMD_IOCTL_TTY, 22, struct termios)  /* TIOCSETAF */

Arguments to devctl():

Argument	Value
`filedes`	A file descriptor that you obtained by opening the device.
`dcmd`	DCMD_CHR_TCSETATTR, DCMD_CHR_TCSETATTRD, or DCMD_CHR_TCSETATTRF
`dev_data_ptr`	A pointer to a struct termios
`n_bytes`	`sizeof(struct termios)`
`dev_info_ptr`	NULL

Description:

These commands change the current terminal control settings of a device:

DCMD_CHR_TCSETATTR — make the change immediately
DCMD_CHR_TCSETATTRD — don't make the change until all currently written data has been transmitted.
DCMD_CHR_TCSETATTRF — don't make the change until all currently written data has been transmitted, at which point any received but unread data is also discarded.

They're also implemented as devctl() commands:

devctl() command	ioctl() command
DCMD_CHR_TCSETATTR	TIOCSETA
DCMD_CHR_TCSETATTRD	TIOCSETAW
DCMD_CHR_TCSETATTRF	TIOCSETAF

Note: These commands are for internal use, and you shouldn't use them directly. Instead use the tcsetattr() cover function.

Input:

A termios structure.

Output:

None.

DCMD_CHR_TCSETATTR, DCMD_CHR_TCSETATTRD, DCMD_CHR_TCSETATTRF

Synopsis:

Arguments to devctl():

Description:

Input:

Output:

See also: