Modem Functions

6.1.12modem_reset()

This function resets the modem.

Syntax

void modem_reset(int unit)

where:

Return value

None.

Usage

The modem_reset() function is called to re-initialize the dial and initialization strings for the modem from the values read from NVRAM, and calls uart_reset() to reset the modem hardware.

Modem Functions

6.1.13modem_speed()

This function returns the baud rate value extracted from the last CONNECT string.

Syntax

long modem_speed(int unit)

where:

Return value

Returns the last known baud rate.

Note

The return value may not relate to the actual transmission speed between this modem and the remote unit at all. Some modems report the connection speed between the UART and the modem, rather than the line speed between the modems.

Modem Functions

6.1.14modem_state()

This function obtains a string describing the state of the modem.

Syntax

char *modem_state()

Return value

Returns a pointer to a static read-only string containing a description of the current status.

Modem Functions

6.1.15modem_write()

This function sends several characters to the modem.

Syntax

int modem_write(int unit, char *buf, int len)

Return value

Returns one of the following:

Usage

The modem_write() function sends len characters of data from buf to the modem. This function is not actually used by the current PPP stack. It is included to accommodate future releases of PPP.