[Letux-kernel] [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power control driver
From: Pavel Machek <hidden>
Date: 2018-03-26 13:59:20
Also in:
linux-devicetree, linux-omap, lkml
From: Pavel Machek <hidden>
Date: 2018-03-26 13:59:20
Also in:
linux-devicetree, linux-omap, lkml
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 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20180326/735b30ed/attachment.sig>