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SubjectSX driver patch.
Date
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Hi Alan,

A client noted that we forgot to implement breaks in the SX
driver. Turns out to be easy. Moreover... I actually tested this
patch! (Somehow the Makefile entry for SX got stomped on, that's
fixed here too.)

Roger.

--
** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 **
*-- BitWizard writes Linux device drivers for any device you may have! --*
* There are old pilots, and there are bold pilots.
* There are also old, bald pilots.
diff -ur linux-2.2.19-pre16.clean/drivers/char/Makefile linux-2.2.19-pre16.sx/drivers/char/Makefile
--- linux-2.2.19-pre16.clean/drivers/char/Makefile Thu Mar 8 12:30:33 2001
+++ linux-2.2.19-pre16.sx/drivers/char/Makefile Thu Mar 8 12:31:22 2001
@@ -200,7 +200,13 @@
endif
endif

-obj-$(CONFIG_SX) += sx.o generic_serial.o
+ifeq ($(CONFIG_SX),y)
+O_OBJS += sx.o generic_serial.o
+else
+ ifeq ($(CONFIG_SX),m)
+ M_OBJS += sx.o generic_serial.o
+ endif
+endif

ifeq ($(CONFIG_RIO),y)
O_OBJS += rio/rio.o generic_serial.o
diff -ur linux-2.2.19-pre16.clean/drivers/char/sx.c linux-2.2.19-pre16.sx/drivers/char/sx.c
--- linux-2.2.19-pre16.clean/drivers/char/sx.c Thu Jan 4 16:27:07 2001
+++ linux-2.2.19-pre16.sx/drivers/char/sx.c Thu Mar 8 12:31:22 2001
@@ -1799,6 +1799,20 @@
}


+static void sx_break (struct tty_struct * tty, int flag)
+{
+ struct sx_port *port = tty->driver_data;
+ int rv;
+
+ if (flag)
+ rv = sx_send_command (port, HS_START, -1, HS_IDLE_BREAK);
+ else
+ rv = sx_send_command (port, HS_STOP, -1, HS_IDLE_OPEN);
+ if (rv != 1) printk (KERN_ERR "sx: couldn't send break (%x).\n",
+ read_sx_byte (port->board, CHAN_OFFSET (port, hi_hstat)));
+}
+
+
static int sx_ioctl (struct tty_struct * tty, struct file * filp,
unsigned int cmd, unsigned long arg)
{
@@ -1867,7 +1881,6 @@
sx_reconfigure_port(port);
}
break;
-
default:
rc = -ENOIOCTLCMD;
break;
@@ -2247,6 +2260,7 @@
sx_driver.table = sx_table;
sx_driver.termios = sx_termios;
sx_driver.termios_locked = sx_termios_locked;
+ sx_driver.break_ctl = sx_break;

sx_driver.open = sx_open;
sx_driver.close = gs_close;
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