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-rw-r--r--include/usb_pd.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/usb_pd.h b/include/usb_pd.h
index 3afef69d1a..83fee88cf0 100644
--- a/include/usb_pd.h
+++ b/include/usb_pd.h
@@ -301,7 +301,8 @@ int pd_custom_vdm(int port, int cnt, uint32_t *payload, uint32_t **rpayload);
* @param data Pointer to payload to send
* @param data number of data objects in payload
*/
-void pd_send_vdm(int port, uint32_t vid, int cmd, uint32_t *data, int count);
+void pd_send_vdm(int port, uint32_t vid, int cmd, const uint32_t *data,
+ int count);
/* Power Data Objects for the source and the sink */
extern const uint32_t pd_src_pdo[];