add sndfifo owner info to skip rewriting data for retrying NAKed

2024-08-26 12:24:29 +07:00
parent c7851e8dcb
commit 27ddf19631
4 changed files with 127 additions and 74 deletions
--- a/src/host/usbh.h
+++ b/src/host/usbh.h
@@ -81,7 +81,7 @@ enum {
 };

 typedef struct {
-  uint8_t max_nak; // max NAK per endpoint per frame
+  uint8_t max_nak; // max NAK per endpoint per frame to save CPU/SPI bus usage
  uint8_t cpuctl; // R16: CPU Control Register
  uint8_t pinctl; // R17: Pin Control Register. FDUPSPI bit is ignored
 } tuh_configure_max3421_t;