diff --git a/libraries/ms-helper/rules.mk b/libraries/ms-helper/rules.mk
index 37796dd8e..cd1387b19 100644
--- a/libraries/ms-helper/rules.mk
+++ b/libraries/ms-helper/rules.mk
@@ -12,7 +12,7 @@ $(T)_DEPS += mu-gen mu-store
 endif
 
 ifeq (x86,$(PLATFORM))
-$(T)_EXCLUDE_TESTS := mcp2515 adc_periodic_reader
+$(T)_EXCLUDE_TESTS := adc_periodic_reader
 endif
 
 $(T)_test_thermistor_MOCKS := adc_read_converted adc_get_channel adc_set_channel
diff --git a/libraries/ms-helper/src/mcp2515.c b/libraries/ms-helper/src/mcp2515.c
index cdcbae92d..c7bafe227 100644
--- a/libraries/ms-helper/src/mcp2515.c
+++ b/libraries/ms-helper/src/mcp2515.c
@@ -273,7 +273,7 @@ StatusCode mcp2515_init(Mcp2515Storage *storage, const Mcp2515Settings *settings
                  MCP2515_CANCTRL_OPMODE_CONFIG | MCP2515_CANCTRL_CLKOUT_CLKPRE_4);
 
   // set RXB0 ctrl BUKT bit on to enable rollover to rx1
-  prv_bit_modify(storage, MCP2515_CTRL_REG_RXB0CTRL, 1 << 3, 1 << 3);
+  prv_bit_modify(storage, MCP2515_CTRL_REG_RXB0CTRL, 1 << 3, 1 << 3);  // Replace the magic numbers
 
   prv_configure_filters(storage, settings->filters);
 
@@ -301,6 +301,7 @@ StatusCode mcp2515_init(Mcp2515Storage *storage, const Mcp2515Settings *settings
   prv_bit_modify(storage, MCP2515_CTRL_REG_CANCTRL, MCP2515_CANCTRL_OPMODE_MASK, opmode);
   // Active-low interrupt pin
   const GpioSettings gpio_settings = {
+    // potentially set up the rest of the fields
     .direction = GPIO_DIR_IN,
   };