diff options
| author | Johan Hovold <jhovold@gmail.com> | 2013-10-09 17:01:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-12 02:00:26 +0200 |
| commit | 706cd17e8559c96dc883ba692c931f1ef31fbc5c (patch) | |
| tree | 66dea7852d01ecc7e1269ed9637ceb1c0254c22f | |
| parent | USB: serial: add memory flags to usb_serial_generic_write_start (diff) | |
| download | linux-706cd17e8559c96dc883ba692c931f1ef31fbc5c.tar.xz linux-706cd17e8559c96dc883ba692c931f1ef31fbc5c.zip | |
USB: serial: export usb_serial_generic_write_start
Export usb_serial_generic_write_start which is needed when implementing
a custom resume function while still relying on the generic write
implementation.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/serial/generic.c | 3 | ||||
| -rw-r--r-- | include/linux/usb/serial.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 31f78290c0e4..2b01ec8651c2 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -129,7 +129,7 @@ int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port, * * Return: Zero on success or if busy, otherwise a negative errno value. */ -static int usb_serial_generic_write_start(struct usb_serial_port *port, +int usb_serial_generic_write_start(struct usb_serial_port *port, gfp_t mem_flags) { struct urb *urb; @@ -184,6 +184,7 @@ retry: return 0; } +EXPORT_SYMBOL_GPL(usb_serial_generic_write_start); /** * usb_serial_generic_write - generic write function diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index d528b8045150..704a1ab8240c 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -320,6 +320,8 @@ extern struct usb_serial_port *usb_serial_port_get_by_minor(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); +extern int usb_serial_generic_write_start(struct usb_serial_port *port, + gfp_t mem_flags); 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); |