static void tpk_close(struct tty_struct *tty, struct file *filp)
{
	struct ttyprintk_port *tpkp = tty->driver_data;

	mutex_lock(&tpkp->port_write_mutex);
	
	tpk_printk(NULL, 0);
	mutex_unlock(&tpkp->port_write_mutex);

	tty_port_close(&tpkp->port, tty, filp);
}
static int tpk_write(struct tty_struct *tty,
		const unsigned char *buf, int count)
{
	struct ttyprintk_port *tpkp = tty->driver_data;
	int ret;


	
	mutex_lock(&tpkp->port_write_mutex);
	ret = tpk_printk(buf, count);
	mutex_unlock(&tpkp->port_write_mutex);

	return ret;
}
Exemplo n.º 3
0
/*
 * TTY operations close function.
 */
static void tpk_close(struct tty_struct *tty, struct file *filp)
{
	struct ttyprintk_port *tpkp = tty->driver_data;

	mutex_lock(&tpkp->port_write_mutex);
	/* flush tpk_printk buffer */
#ifdef CONFIG_DEBUG_PRINTK
	tpk_printk(NULL, 0);
#else
	tpk_;
#endif
	mutex_unlock(&tpkp->port_write_mutex);

	tty_port_close(&tpkp->port, tty, filp);
}
Exemplo n.º 4
0
/*
 * TTY operations write function.
 */
static int tpk_write(struct tty_struct *tty,
		const unsigned char *buf, int count)
{
	struct ttyprintk_port *tpkp = tty->driver_data;
	int ret;


	/* exclusive use of tpk_printk within this tty */
	mutex_lock(&tpkp->port_write_mutex);
#ifdef CONFIG_DEBUG_PRINTK
	ret = tpk_printk(buf, count);
#else
	ret = tpk_;
#endif
	mutex_unlock(&tpkp->port_write_mutex);

	return ret;
}