tty: Bring the usb tty port structure into more use

This allows us to clean stuff up, but is probably also going to cause
some app breakage with buggy apps as we now implement proper POSIX behaviour
for USB ports matching all the other ports. This does also mean other apps
that break on USB will now work properly.

Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 625e9e4639c6..8cdfed738fe4 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -224,8 +224,7 @@ struct usb_serial_driver {
         /* Called by console with tty = NULL and by tty */
         int  (*open)(struct tty_struct *tty,
                         struct usb_serial_port *port, struct file *filp);
-        void (*close)(struct tty_struct *tty,
-                        struct usb_serial_port *port, struct file *filp);
+        void (*close)(struct usb_serial_port *port);
         int  (*write)(struct tty_struct *tty, struct usb_serial_port *port,
                         const unsigned char *buf, int count);
         /* Called only by the tty layer */
@@ -241,6 +240,10 @@ struct usb_serial_driver {
         int  (*tiocmget)(struct tty_struct *tty, struct file *file);
         int  (*tiocmset)(struct tty_struct *tty, struct file *file,
                          unsigned int set, unsigned int clear);
+        /* Called by the tty layer for port level work. There may or may not
+           be an attached tty at this point */
+        void (*dtr_rts)(struct usb_serial_port *port, int on);
+        int  (*carrier_raised)(struct usb_serial_port *port);
         /* USB events */
         void (*read_int_callback)(struct urb *urb);
         void (*write_int_callback)(struct urb *urb);
@@ -283,8 +286,7 @@ extern int usb_serial_generic_open(struct tty_struct *tty,
                 struct usb_serial_port *port, struct file *filp);
 extern int usb_serial_generic_write(struct tty_struct *tty,
         struct usb_serial_port *port, const unsigned char *buf, int count);
-extern void usb_serial_generic_close(struct tty_struct *tty,
-                        struct usb_serial_port *port, struct file *filp);
+extern void usb_serial_generic_close(struct usb_serial_port *port);
 extern int usb_serial_generic_resume(struct usb_serial *serial);
 extern int usb_serial_generic_write_room(struct tty_struct *tty);
 extern int usb_serial_generic_chars_in_buffer(struct tty_struct *tty);