Hi!
> $ printf "ATH\r" > /dev/motmdm1
> H:OK
>
> Also SMS can be sent with this patch using /dev/motmdm3 for sending,
> and /dev/motmdm9 for receiving messages, and /dev/motmdm10 can be
> used for SIM access.
>
> Note that the audio mixer needs additional patches though. I will be
> sending those as a separate series of patches.
>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Reviewed-by: Pavel Machek <pavel@xxxxxx>
Some minor comments are below.
> +++ b/drivers/tty/serdev/protocol/Kconfig
> @@ -0,0 +1,14 @@
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Serial bus device driver protocol specific configuration
> +#
> +
> +config SERIAL_DEV_NGSM_MOTMDM
> + tristate "Motorola Modem TS 27.010 Serdev Protocol Driver"
> + depends on N_GSM && PHY_MAPPHONE_MDM6600
> + help
> + Select this for Motorola modems using TS 27.010 serial line
> + discipline such as MDM6600 modem found on Motorola Mapphone
> + devices like Droid4
I'd add "." at the end of sentence.
> +/*
> + * Character devices for DLCI channels with no serdev drivers
> + */
> +static int motmdm_cdev_open(struct inode *inode, struct file *file)
> +{
> + struct motmdm_cdev *cdata;
> + int ret = 0;
> +
> + cdata = container_of(inode->i_cdev, struct motmdm_cdev, cdev);
> + get_device(cdata->dev);
> + nonseekable_open(inode, file);
> + file->private_data = cdata;
> +
> + down_write(&cdata->rwsem);
> + if (cdata->disconnected) {
> + ret = -ENODEV;
> + goto unlock;
> + }
> +
> +unlock:
> + up_write(&cdata->rwsem);
You can delete goto and the label here.
> +static int motmdm_cdev_release(struct inode *inode, struct file *file)
> +{
> + struct motmdm_cdev *cdata = file->private_data;
> +
> + down_write(&cdata->rwsem);
> + if (cdata->disconnected)
> + goto unlock;
> +
> +unlock:
> + up_write(&cdata->rwsem);
And here... unless it is some kind of preparation for next patch?
> +MODULE_DESCRIPTION("Motorola Modem TS 27.010 serdev driver");
> +MODULE_AUTHOR("Tony Lindgren <tony@xxxxxxxxxxx");
Missing ">" at the end of email address.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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