Hi, On Fri, Dec 12, 2014 at 08:59:44AM +1100, NeilBrown wrote: > This uart-attatched GPS device has a toggle which turns > both on and off. For reliable use we need to know what > start it is in. I guess you mean "what state it is in"? > So it registers with the tty for recv events when the tty > is open, and optionally configures the RX pin as a GPIO > interrupt when the tty is closed. > > If it detects data when it should be off, or a lack of data > when it should be on, it toggles the line. > > A regulator can also be configured to power the antenna. > In this case an rfkill device is created. When the rfkill > is 'blocked' or the device is otherwise powered down, > the regulator is turned off. [...] > index 000000000000..c9e7838b3198 > --- /dev/null > +++ b/Documentation/devicetree/bindings/serial/slave-w2sg0004.txt > @@ -0,0 +1,35 @@ > +w2sg0004 UART-attached GPS receiver > + > +Required properties: > +- compatbile: "tty,w2sg0004" grep tty $ grep -c tty Documentation/devicetree/bindings/vendor-prefixes.txt 0 This should be something like "wi2wi,w2sg0004" [...] -- Sebastian
Attachment:
signature.asc
Description: Digital signature
