Title: [5242] trunk/drivers/serial/kgdboc.c: Task[#3428] Add comments.
- Revision
- 5242
- Author
- sonicz
- Date
- 2008-09-04 02:00:23 -0500 (Thu, 04 Sep 2008)
Log Message
Task[#3428] Add comments.
Modified Paths
Diff
Modified: trunk/drivers/serial/kgdboc.c (5241 => 5242)
--- trunk/drivers/serial/kgdboc.c 2008-09-04 06:47:22 UTC (rev 5241)
+++ trunk/drivers/serial/kgdboc.c 2008-09-04 07:00:23 UTC (rev 5242)
@@ -32,17 +32,21 @@
static struct tty_driver *kgdb_tty_driver;
static int kgdb_tty_line;
+/* Allow UART driver to check if current tty device is used by kgdb.*/
int is_kgdb_tty_line(int tty_line)
{
return tty_line == kgdb_tty_line;
}
EXPORT_SYMBOL_GPL(is_kgdb_tty_line);
-void __weak kgdboc_uart_port_shutdown(int line)
+/* UART driver may decide whether to support gdb break signal Ctrl+C
+ by request and handle UART RX interrupt. */
+void __weak kgdboc_uart_port_startup(int line)
{
}
-void __weak kgdboc_uart_port_startup(int line)
+/* Free UART RX interrupt */
+void __weak kgdboc_uart_port_shutdown(int line)
{
}
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