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-rw-r--r--tmk_core/protocol/arm_atsam/i2c_master.c3
-rw-r--r--tmk_core/protocol/arm_atsam/i2c_master.h4
2 files changed, 5 insertions, 2 deletions
diff --git a/tmk_core/protocol/arm_atsam/i2c_master.c b/tmk_core/protocol/arm_atsam/i2c_master.c
index d3319ab447..dda2f85b00 100644
--- a/tmk_core/protocol/arm_atsam/i2c_master.c
+++ b/tmk_core/protocol/arm_atsam/i2c_master.c
@@ -28,6 +28,9 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
# define I2C_LED_USE_DMA 1 // Set 1 to use background DMA transfers for leds, Set 0 to use inline software transfers
+DmacDescriptor dmac_desc;
+DmacDescriptor dmac_desc_wb;
+
static uint8_t i2c_led_q[I2C_Q_SIZE]; // I2C queue circular buffer
static uint8_t i2c_led_q_s; // Start of circular buffer
static uint8_t i2c_led_q_e; // End of circular buffer
diff --git a/tmk_core/protocol/arm_atsam/i2c_master.h b/tmk_core/protocol/arm_atsam/i2c_master.h
index 44dbdfbffa..68773f213f 100644
--- a/tmk_core/protocol/arm_atsam/i2c_master.h
+++ b/tmk_core/protocol/arm_atsam/i2c_master.h
@@ -24,8 +24,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
# include "issi3733_driver.h"
# include "config.h"
-__attribute__((__aligned__(16))) DmacDescriptor dmac_desc;
-__attribute__((__aligned__(16))) DmacDescriptor dmac_desc_wb;
+extern __attribute__((__aligned__(16))) DmacDescriptor dmac_desc;
+extern __attribute__((__aligned__(16))) DmacDescriptor dmac_desc_wb;
uint8_t I2C3733_Init_Control(void);
uint8_t I2C3733_Init_Drivers(void);