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-rw-r--r--lib/colorhug/ch-device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/colorhug/ch-device.c b/lib/colorhug/ch-device.c
index 3f58040..f63b538 100644
--- a/lib/colorhug/ch-device.c
+++ b/lib/colorhug/ch-device.c
@@ -764,7 +764,7 @@ ch_device_write_command (GUsbDevice *device,
/**
* ch_device_check_firmware:
- * @data: firmware binary data
+ * @data: (array length=data_len): firmware binary data
* @data_len: size of @data
*
* Checks the firmware is suitable for the ColorHug device that is attached.