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USB: pl2303 usb_serial: implement sysrq handling on break 

Add callbacks to process the sysrq when using a pl2303 usb device as a
console.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jason Wessel 2009-05-29 13:34:16 -05:00 committed by Greg Kroah-Hartman
parent 830d1b188c
commit 430eb0d27c
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/serial/pl2303.c
View File

@ -927,6 +927,8 @@ static void pl2303_update_line_status(struct usb_serial_port *port,
spin_lock_irqsave(&priv->lock, flags);
priv->line_status = data[status_idx];
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->line_status & UART_BREAK_ERROR)
usb_serial_handle_break(port);
wake_up_interruptible(&priv->delta_msr_wait);
}
@ -1037,7 +1039,8 @@ static void pl2303_read_bulk_callback(struct urb *urb)
if (line_status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
for (i = 0; i < urb->actual_length; ++i)
tty_insert_flip_char(tty, data[i], tty_flag);
if (!usb_serial_handle_sysrq_char(port, data[i]))
tty_insert_flip_char(tty, data[i], tty_flag);
tty_flip_buffer_push(tty);
}
tty_kref_put(tty);