From 6990badc6902cf70d2702e5618d7f935bcadaaf2 Mon Sep 17 00:00:00 2001
From: Brendan <2bndy5@gmail.com>
Date: Mon, 15 Jul 2024 04:00:56 -0700
Subject: [PATCH] replace `reg | R_REGISTER` with just `reg`

`R_REGISTER` is defined as 0.
`reg | 0` always results in `reg`
---
 RF24.cpp                                                   | 4 ++--
 examples/rf24_ATTiny/timingSearch3pin/timingSearch3pin.ino | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/RF24.cpp b/RF24.cpp
index c1df5fd32..d226cbcad 100644
--- a/RF24.cpp
+++ b/RF24.cpp
@@ -154,7 +154,7 @@ void RF24::read_register(uint8_t reg, uint8_t* buf, uint8_t len)
     uint8_t* ptx = spi_txbuff;
     uint8_t size = static_cast<uint8_t>(len + 1); // Add register value to transmit buffer
 
-    *ptx++ = (R_REGISTER | reg);
+    *ptx++ = reg;
 
     while (len--) {
         *ptx++ = RF24_NOP; // Dummy operation, just for reading
@@ -206,7 +206,7 @@ uint8_t RF24::read_register(uint8_t reg)
 
     uint8_t* prx = spi_rxbuff;
     uint8_t* ptx = spi_txbuff;
-    *ptx++ = (R_REGISTER | reg);
+    *ptx++ = reg;
     *ptx++ = RF24_NOP; // Dummy operation, just for reading
 
     #if defined(RF24_RP2)
diff --git a/examples/rf24_ATTiny/timingSearch3pin/timingSearch3pin.ino b/examples/rf24_ATTiny/timingSearch3pin/timingSearch3pin.ino
index d554c0452..c2b79b3a6 100644
--- a/examples/rf24_ATTiny/timingSearch3pin/timingSearch3pin.ino
+++ b/examples/rf24_ATTiny/timingSearch3pin/timingSearch3pin.ino
@@ -79,7 +79,7 @@ void csn(bool mode) {
 /****************************************************************************/
 uint8_t read_register(uint8_t reg) {
   csn(LOW);
-  SPI.transfer(R_REGISTER | reg);
+  SPI.transfer(reg);
   uint8_t result = SPI.transfer(0xff);
   csn(HIGH);
   return result;