Re: [Letux-kernel] [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power control driver

Hi!

quoted

No, we need some kind of at least rudimentary gps framework even if we
allow for a raw (NMEA) interface for the time being (possibly
indefinitely).

Ok, that would be fine if we can get that!

For a minimal set of API I think something like this (following hci_dev) would suffice:

struct gps_dev {
	...
	int (*open)(struct gps_dev *gdev);
	int (*close)(struct gps_dev *gdev);
	int (*send)(struct gps_dev *gdev, char *data, int length);
};

int gps_register_dev(struct gps_dev *gdev);
void gps_unregister_dev(struct gps_dev *gdev);
int gps_recv_nmea_chars(struct gps_dev *gdev, char *data, int length);

If that would wrap all creation of some /dev/ttyGPS0 (or however it is called),
it would fit our needs for a driver and user-space for our system.

And I would be happy to get rid of creating and registering a /dev/ttyGPS0
in the w2sg0004 driver.

Sounds like a good start.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html