* @serial: pointer back to the struct usb_serial owner of this port.
* @port: pointer to the corresponding tty_port for this port.
* @lock: spinlock to grab when updating portions of this structure.
- * @mutex: mutex used to synchronize serial_open() and serial_close()
- * access for this port.
* @number: the number of the port (the minor number).
* @interrupt_in_buffer: pointer to the interrupt in buffer for this port.
* @interrupt_in_urb: pointer to the interrupt in struct urb for this port.
* @bulk_out_buffer: pointer to the bulk out buffer for this port.
* @bulk_out_size: the size of the bulk_out_buffer, in bytes.
* @write_urb: pointer to the bulk out struct urb for this port.
+ * @write_fifo: kfifo used to buffer outgoing data
* @write_urb_busy: port`s writing status
* @bulk_out_endpointAddress: endpoint address for the bulk out pipe for this
* port.
struct usb_serial *serial;
struct tty_port port;
spinlock_t lock;
- struct mutex mutex;
unsigned char number;
unsigned char *interrupt_in_buffer;
unsigned char *bulk_out_buffer;
int bulk_out_size;
struct urb *write_urb;
+ struct kfifo *write_fifo;
int write_urb_busy;
__u8 bulk_out_endpointAddress;
struct usb_interface *interface;
unsigned char disconnected:1;
unsigned char suspending:1;
+ unsigned char attached:1;
unsigned char minor;
unsigned char num_ports;
unsigned char num_port_pointers;
int (*resume)(struct usb_serial *serial);
/* serial function calls */
- /* Called by console with tty = NULL and by tty */
- int (*open)(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+ /* Called by console and by the tty layer */
+ int (*open)(struct tty_struct *tty, struct usb_serial_port *port);
void (*close)(struct usb_serial_port *port);
int (*write)(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
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);
+ /* Called by the usb serial hooks to allow the user to rework the
+ termios state */
+ void (*init_termios)(struct tty_struct *tty);
/* USB events */
void (*read_int_callback)(struct urb *urb);
void (*write_int_callback)(struct urb *urb);
extern struct usb_serial *usb_serial_get_by_index(unsigned int minor);
extern void usb_serial_put(struct usb_serial *serial);
extern int usb_serial_generic_open(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+ struct usb_serial_port *port);
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 usb_serial_port *port);
extern void usb_serial_generic_deregister(void);
extern void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port,
gfp_t mem_flags);
-extern int usb_serial_handle_sysrq_char(struct usb_serial_port *port,
+extern int usb_serial_handle_sysrq_char(struct tty_struct *tty,
+ struct usb_serial_port *port,
unsigned int ch);
extern int usb_serial_handle_break(struct usb_serial_port *port);