linux-kernel - [PATCH] input: Add marine keycodes for radar control.

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Message-ID: <20251013152309.880-1-Hunter.Moore@garmin.com>
Date: Mon, 13 Oct 2025 10:23:09 -0500
From: Hunter Moore <Hunter.Moore@...min.com>
To: <dmitry.torokhov@...il.com>
CC: <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Hunter
 Moore" <hunter.moore@...min.com>,
        Hunter Moore <Hunter.Moore@...min.com>
Subject: [PATCH] input: Add marine keycodes for radar control.

From: Hunter Moore <hunter.moore@...min.com>

We are looking into adding some additional keycodes to add support for
radar control. In total we are adding 29 keycodes which seems to
exceed the KEY_MAX limit set, so we have also bumped this value to
0x3ff to double the available keycodes.

Signed-off-by: Hunter Moore <Hunter.Moore@...min.com>
---
 include/linux/mod_devicetable.h        |  2 +-
 include/uapi/linux/input-event-codes.h | 32 +++++++++++++++++++++++++-
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 6077972e8b45..97f8867955de 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -333,7 +333,7 @@ struct pcmcia_device_id {
 /* Input */
 #define INPUT_DEVICE_ID_EV_MAX         0x1f
 #define INPUT_DEVICE_ID_KEY_MIN_INTERESTING    0x71
-#define INPUT_DEVICE_ID_KEY_MAX                0x2ff
+#define INPUT_DEVICE_ID_KEY_MAX                0x3ff
 #define INPUT_DEVICE_ID_REL_MAX                0x0f
 #define INPUT_DEVICE_ID_ABS_MAX                0x3f
 #define INPUT_DEVICE_ID_MSC_MAX                0x07
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index ca5851e97fac..49a7fd7c0e23 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -815,9 +815,39 @@
 #define BTN_TRIGGER_HAPPY39            0x2e6
 #define BTN_TRIGGER_HAPPY40            0x2e7

+#define KEY_RADAR_TRANSMIT             0x2e8
+#define KEY_RADAR_RANGE_UP             0x2e9
+#define KEY_RADAR_RANGE_DOWN           0x2ea
+#define KEY_RADAR_GAIN_UP              0x2eb
+#define KEY_RADAR_GAIN_DOWN            0x2ec
+#define KEY_RADAR_SEA_UP               0x2ed
+#define KEY_RADAR_SEA_DOWN             0x2ee
+#define KEY_RADAR_RAIN_UP              0x2ef
+#define KEY_RADAR_RAIN_DOWN            0x2f0
+#define KEY_RADAR_VRM1_UP              0x2f1
+#define KEY_RADAR_VRM1_DOWN            0x2f2
+#define KEY_RADAR_VRM2_UP              0x2f3
+#define KEY_RADAR_VRM2_DOWN            0x2f4
+#define KEY_RADAR_EBL1_UP              0x2f5
+#define KEY_RADAR_EBL1_DOWN            0x2f6
+#define KEY_RADAR_EBL2_UP              0x2f7
+#define KEY_RADAR_EBL2_DOWN            0x2f8
+#define KEY_RADAR_VRM_TOGGLE           0x2f9
+#define KEY_RADAR_VRM_UP               0x2fa
+#define KEY_RADAR_VRM_DOWN             0x2fb
+#define KEY_RADAR_EBL_TOGGLE           0x2fc
+#define KEY_RADAR_EBL_UP               0x2fd
+#define KEY_RADAR_EBL_DOWN             0x2fe
+#define KEY_RADAR_SCANNER_TOGGLE       0x2ff
+#define KEY_RADAR_SCANNER1             0x300
+#define KEY_RADAR_SCANNER2             0x301
+#define KEY_RADAR_CHANNEL_TOGGLE       0x302
+#define KEY_RADAR_CHANNEL_A            0x303
+#define KEY_RADAR_CHANNEL_B            0x304
+
 /* We avoid low common keys in module aliases so they don't get huge. */
 #define KEY_MIN_INTERESTING    KEY_MUTE
-#define KEY_MAX                        0x2ff
+#define KEY_MAX                        0x3ff
 #define KEY_CNT                        (KEY_MAX+1)

 /*
--
2.43.0


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