[PATCH 28/75] Add device function for USB serial console

Alan Cox
2009-01-02T13:44:20Z

From: Kevin Hao <kexin.hao@windriver.com>

Add device funtion for usb serial console, so we can open /dev/console
when we use a usb serial device as console.

(Typecast removed as noted by Sergei Shtylyov)

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Alan Cox <alan@redhat.com>
---

drivers/usb/serial/console.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 5b95009..19e2404 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -241,12 +241,25 @@ static void usb_console_write(struct console *co,
}
}

+static struct tty_driver *usb_console_device(struct console *co, int *index)
+{
+ struct tty_driver **p = (struct tty_driver **)co->data;
+
+ if (!*p)
+ return NULL;
+
+ *index = co->index;
+ return *p;
+}
+
static struct console usbcons = {
.name = "ttyUSB",
.write = usb_console_write,
+ .device = usb_console_device,
.setup = usb_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
+ .data = &usb_serial_tty_driver,
};

void usb_serial_console_disconnect(struct usb_serial *serial)