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authorJohan Hovold <johan@kernel.org>2018-06-01 10:22:59 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-06-28 20:32:51 +0900
commit10f146639fee5ffaf7cf0081c1af518f7d0c533c (patch)
tree1fdc31ab3bf22339c89db3b7ba134c6aad9579cf /Documentation/ABI
parentd2efbbd18b1e26ac79401841089e4a4b97d745c3 (diff)
gnss: add receiver type support
Add a "type" device attribute and a "GNSS_TYPE" uevent variable which can be used to determine the type of a GNSS receiver. The currently identified types reflect the protocol(s) supported by a receiver: "NMEA" NMEA 0183 "SiRF" SiRF Binary "UBX" UBX Note that both SiRF and UBX type receivers typically support a subset of NMEA 0183 with vendor extensions (e.g. to allow switching to the vendor protocol). Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-class-gnss15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-gnss b/Documentation/ABI/testing/sysfs-class-gnss
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+What: /sys/class/gnss/gnssN/type
+Date: May 2018
+KernelVersion: 4.18
+Contact: Johan Hovold <johan@kernel.org>
+Description:
+ The GNSS receiver type. The currently identified types reflect
+ the protocol(s) supported by the receiver:
+
+ "NMEA" NMEA 0183
+ "SiRF" SiRF Binary
+ "UBX" UBX
+
+ Note that also non-"NMEA" type receivers typically support a
+ subset of NMEA 0183 with vendor extensions (e.g. to allow
+ switching to a vendor protocol).