From d79678a0cc2d7e3192442415d9d14237a74a9b2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20NEDJAR?= <sebastien@nedjar.com>
Date: Sun, 15 Mar 2026 10:55:48 +0100
Subject: [PATCH] bq27441: Add reset() method for hardware reset.

---
 lib/bq27441/bq27441/device.py |  6 +++++-
 tests/scenarios/bq27441.yaml  | 11 +++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/bq27441/bq27441/device.py b/lib/bq27441/bq27441/device.py
index 068a1899..58ebc9e3 100644
--- a/lib/bq27441/bq27441/device.py
+++ b/lib/bq27441/bq27441/device.py
@@ -454,7 +454,11 @@ def write_op_config(self, value):
         # OpConfig register location: BQ27441_ID_REGISTERS id, offset 0
         return self.write_extended_data(BQ27441_ID_REGISTERS, 0, op_config_data, 2)
 
-    # Issue a soft - reset to the BQ27441 - G1A
+    # Full reset of the BQ27441-G1A
+    def reset(self):
+        return self.execute_control_word(BQ27441_CONTROL_RESET)
+
+    # Soft reset (resimulation) of the BQ27441-G1A
     def soft_reset(self):
         return self.execute_control_word(BQ27441_CONTROL_SOFT_RESET)
 
diff --git a/tests/scenarios/bq27441.yaml b/tests/scenarios/bq27441.yaml
index a1ae1c6c..5c01480e 100644
--- a/tests/scenarios/bq27441.yaml
+++ b/tests/scenarios/bq27441.yaml
@@ -67,6 +67,17 @@ tests:
     expect: 185
     mode: [mock]
 
+  - name: "Reset sends CONTROL_RESET command"
+    action: script
+    script: |
+      i2c.clear_write_log()
+      dev.reset()
+      log = i2c.get_write_log()
+      wrote_reset = any(reg == 0x00 and data[0] == 0x41 for reg, data in log)
+      result = wrote_reset
+    expect_true: true
+    mode: [mock]
+
   - name: "Read state of health"
     action: call
     method: state_of_health