Added a nicer warning message for legacy I2C users.

CMakeLists.txt

@@ -1,7 +1,22 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.17)
 set(CMAKE_C_STANDARD 11)
+
+if ("${CONFIG_USE_I2C_LEGACY_DRIVER}")
+    if ("$ENV{IDF_VERSION}" VERSION_GREATER_EQUAL "7.0.0")
+        message(SEND_ERROR "[ BMX280 ] The legacy I2C driver has been removed since version 7.0.0. Unless you intended to compile for older IDF versions, change your build configuration to use the I2C master driver.")
+    else()
+        message(WARNING "[ BMX280 ] The legacy I2C driver has been deprecated since version 6.0.0. The driver will not compile with the legacy I2C driver enabled in version 7.0.0 or later.")
+    endif()
+
+    message(STATUS "[ BMX280 ] Using the legacy I2C driver.")
+    set(BMX280_I2C_DRIVER_REQUIRE "driver")
+else()
+    message(STATUS "[ BMX280 ] Using the new I2C master driver.")
+    set(BMX280_I2C_DRIVER_REQUIRE "esp_driver_i2c")
+endif()
+
 idf_component_register(
     SRCS bmx280.c
     INCLUDE_DIRS "include"
-    REQUIRES driver
+    REQUIRES "${BMX280_I2C_DRIVER_REQUIRE}"
 )

bmx280.c

@@ -634,7 +634,7 @@ esp_err_t bmx280_readout(bmx280_t *bmx280, int32_t *temperature, uint32_t *press
             return error;
 
         *temperature = BME280_compensate_T_int32(bmx280,
-                        (buffer[0] << 12) | (buffer[1] << 4) | (buffer[0] >> 4)
+                        (buffer[0] << 12) | (buffer[1] << 4) | (buffer[2] >> 4)
                     );
     }
 
@@ -644,7 +644,7 @@ esp_err_t bmx280_readout(bmx280_t *bmx280, int32_t *temperature, uint32_t *press
             return error;
 
         *pressure = BME280_compensate_P_int64(bmx280, 
-                        (buffer[0] << 12) | (buffer[1] << 4) | (buffer[0] >> 4)
+                        (buffer[0] << 12) | (buffer[1] << 4) | (buffer[2] >> 4)
                     );
     }
 

include/bmx280_bits.h

@@ -57,7 +57,6 @@ typedef enum bmx280_tstby_t {
 
 typedef enum bmx280_iirf_t {
     BMX280_IIR_NONE = 0x0,
-    BMX280_IIR_X1,
     BMX280_IIR_X2,
     BMX280_IIR_X4,
     BMX280_IIR_X8,