1 files changed, 2 insertions, 1 deletions
diff --git a/src/drivers/SpiMaster.h b/src/drivers/SpiMaster.h
index 8b698c57..9014061e 100644
--- a/src/drivers/SpiMaster.h
+++ b/src/drivers/SpiMaster.h
@@ -31,7 +31,7 @@ namespace Pinetime {
       SpiMaster& operator=(SpiMaster&&) = delete;
 
       bool Init();
-      bool Write(uint8_t pinCsn, const uint8_t* data, size_t size);
+      bool Write(uint8_t pinCsn, const uint8_t* data, size_t size, void (*TransactionHook)(bool));
       bool Read(uint8_t pinCsn, uint8_t* cmd, size_t cmdSize, uint8_t* data, size_t dataSize);
 
       bool WriteCmdAndBuffer(uint8_t pinCsn, const uint8_t* cmd, size_t cmdSize, const uint8_t* data, size_t dataSize);
@@ -50,6 +50,7 @@ namespace Pinetime {
 
       NRF_SPIM_Type* spiBaseAddress;
       uint8_t pinCsn;
+      void (*TransactionHook)(bool);
 
       SpiMaster::SpiModule spi;
       SpiMaster::Parameters params;