static DEFINE_SPINLOCK(timer_lock);
-/*
- * This routine is called whenever a serial port is opened. It
- * enables interrupts for a serial port, linking in its async structure into
- * the IRQ chain. It also performs the serial-specific
- * initialization for the tty structure.
- */
-
static void rs_poll(struct timer_list *);
static int rs_open(struct tty_struct *tty, struct file * filp)
return 0;
}
-
-/*
- * ------------------------------------------------------------
- * iss_serial_close()
- *
- * This routine is called when the serial port gets closed. First, we
- * wait for the last remaining data to be sent. Then, we unlink its
- * async structure from the interrupt chain if necessary, and we free
- * that IRQ if nothing is left in the chain.
- * ------------------------------------------------------------
- */
static void rs_close(struct tty_struct *tty, struct file * filp)
{
spin_lock_bh(&timer_lock);