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Diffstat (limited to 'drivers/sensors/pimoroni_trackball.h')
-rw-r--r--drivers/sensors/pimoroni_trackball.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/sensors/pimoroni_trackball.h b/drivers/sensors/pimoroni_trackball.h
index 4b8a2548ae..74ae6d7228 100644
--- a/drivers/sensors/pimoroni_trackball.h
+++ b/drivers/sensors/pimoroni_trackball.h
@@ -50,7 +50,7 @@ typedef struct {
uint8_t click;
} pimoroni_data_t;
-const pointing_device_driver_t pimoroni_trackball_pointing_device_driver;
+extern const pointing_device_driver_t pimoroni_trackball_pointing_device_driver;
bool pimoroni_trackball_device_init(void);
void pimoroni_trackball_set_rgbw(uint8_t red, uint8_t green, uint8_t blue, uint8_t white);