AP_OSD: use transfer_fullduplex() for full duplex transfers

andyp1per · tpwrules · commit 787e78820e6f · 2025-03-31T22:52:45.000-05:00
diff --git a/libraries/AP_OSD/AP_OSD_MAX7456.cpp b/libraries/AP_OSD/AP_OSD_MAX7456.cpp
@@ -202,7 +202,7 @@ bool AP_OSD_MAX7456::check_font_char(uint8_t chr, const uint8_t* font_data)
         buffer_add_cmd(MAX7456ADD_CMDO, 0xFF);
     }
     _dev->get_semaphore()->take_blocking();
-    _dev->transfer(buffer, buffer_offset, buffer, buffer_offset);
+    _dev->transfer_fullduplex(buffer, buffer_offset);
     _dev->get_semaphore()->give();
 
     //skip response from MAX7456ADD_VM0/MAX7456ADD_CMAH...

Original file line number	Diff line number	Diff line change
`@@ -202,7 +202,7 @@ bool AP_OSD_MAX7456::check_font_char(uint8_t chr, const uint8_t* font_data)`
`202`	`202`	`buffer_add_cmd(MAX7456ADD_CMDO, 0xFF);`
`203`	`203`	`}`
`204`	`204`	`_dev->get_semaphore()->take_blocking();`
`205`		`- _dev->transfer(buffer, buffer_offset, buffer, buffer_offset);`
	`205`	`+ _dev->transfer_fullduplex(buffer, buffer_offset);`
`206`	`206`	`_dev->get_semaphore()->give();`
`207`	`207`
`208`	`208`	`//skip response from MAX7456ADD_VM0/MAX7456ADD_CMAH...`