diff options
Diffstat (limited to 'drivers/tty/tty_port.c')
| -rw-r--r-- | drivers/tty/tty_port.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 96302f4c707..d7bdd8d0c23 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -73,6 +73,30 @@ struct device *tty_port_register_device(struct tty_port *port, } EXPORT_SYMBOL_GPL(tty_port_register_device); +/** + * tty_port_register_device_attr - register tty device + * @port: tty_port of the device + * @driver: tty_driver for this device + * @index: index of the tty + * @device: parent if exists, otherwise NULL + * @drvdata: Driver data to be set to device. + * @attr_grp: Attribute group to be set on device. + * + * It is the same as tty_register_device_attr except the provided @port is + * linked to a concrete tty specified by @index. Use this or tty_port_install + * (or both). Call tty_port_link_device as a last resort. + */ +struct device *tty_port_register_device_attr(struct tty_port *port, + struct tty_driver *driver, unsigned index, + struct device *device, void *drvdata, + const struct attribute_group **attr_grp) +{ + tty_port_link_device(port, driver, index); + return tty_register_device_attr(driver, index, device, drvdata, + attr_grp); +} +EXPORT_SYMBOL_GPL(tty_port_register_device_attr); + int tty_port_alloc_xmit_buf(struct tty_port *port) { /* We may sleep in get_zeroed_page() */ |