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USB: serial: add generic get_icount implementation

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Add generic get_icount implementation that subdrivers relying on the
port interrupt counters can use.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2013-03-21 12:36:54 +01:00
committed by Greg Kroah-Hartman
parent c371de14b9
commit befefcda4b
2 changed files with 29 additions and 0 deletions
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include/linux/usb/serial.h
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@@ -335,6 +335,8 @@ extern void usb_serial_generic_throttle(struct tty_struct *tty);
extern void usb_serial_generic_unthrottle(struct tty_struct *tty);
extern int usb_serial_generic_tiocmiwait(struct tty_struct *tty,
unsigned long arg);
extern int usb_serial_generic_get_icount(struct tty_struct *tty,
struct serial_icounter_struct *icount);
extern int usb_serial_generic_register(void);
extern void usb_serial_generic_deregister(void);
extern int usb_serial_generic_submit_read_urbs(struct usb_serial_port *port,