Re: [PATCH 18/19] serdev: ttydev: Serdev driver that creates an standard TTY port

From: Andy Shevchenko
Date: Tue Jun 05 2018 - 09:42:25 EST


On Tue, May 29, 2018 at 4:10 PM, Ricardo Ribalda Delgado
<ricardo.ribalda@xxxxxxxxx> wrote:
> Standard TTY port that can be loaded/unloaded via serdev sysfs. This
> serdev driver can only be used by serdev controllers that are compatible
> with ttyport.

> +config SERIAL_DEV_CTRL_TTYDEV
> + tristate "TTY port dynamically loaded by the Serial Device Bus"
> + help
> + Say Y here if you want to create a bridge driver between the Serial
> + device bus and the TTY chardevice. This driver can be dynamically
> + loaded/unloaded by the Serial Device Bus.
> +
> + If unsure, say Y.
> + depends on SERIAL_DEV_CTRL_TTYPORT

> + default m

Hmm... Can't we survive w/o this by default?

> +static int __init ttydev_serdev_init(void)
> +{
> + return serdev_device_driver_register(&ttydev_serdev_driver);
> +}
> +module_init(ttydev_serdev_init);
> +
> +static void __exit ttydev_serdev_exit(void)
> +{
> + return serdev_device_driver_unregister(&ttydev_serdev_driver);
> +}
> +module_exit(ttydev_serdev_exit);

Isn't above is just a macro in serdev.h?
I.e. module_serdev_device_driver().

--
With Best Regards,
Andy Shevchenko