MCR_RTS
#define PTT_ON (MCR_RTS|MCR_OUT2) /* activate PTT */
outb(MCR_DTR | MCR_RTS | MCR_OUT1 | MCR_OUT2, MCR(iobase));
bit = (wrd & 0x80) ? (MCR_RTS | MCR_DTR) : MCR_DTR;
edge_port->shadowMCR &= ~MCR_RTS;
edge_port->shadowMCR |= MCR_RTS;
mcr |= MCR_RTS;
mcr &= ~MCR_RTS;
| ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */
edge_port->shadowMCR |= (MCR_DTR | MCR_RTS);
status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS);
edge_port->shadow_mcr = MCR_RTS | MCR_DTR;
edge_port->shadow_mcr &= ~MCR_RTS;
edge_port->shadow_mcr |= MCR_RTS;
mcr |= MCR_RTS;
mcr &= ~MCR_RTS;
| ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */
mcr &= ~MCR_RTS;
mcr |= MCR_RTS;
mos7840_port->shadowMCR |= (MCR_DTR | MCR_RTS);
mos7840_port->shadowMCR &= ~MCR_RTS;
mos7840_port->shadowMCR |= MCR_RTS;
| ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
priv->line_control |= MCR_RTS;
priv->line_control |= MCR_RTS;
priv->line_control &= ~MCR_RTS;
| ((mcr & MCR_RTS) ? TIOCM_RTS : 0)