From 2ca4adbeeb753c6831d152dc3c65c3f564b21980 Mon Sep 17 00:00:00 2001
From: andy <andy@dixon.cx>
Date: Fri, 11 Sep 2026 13:08:28 +0100
Subject: [PATCH] Export remaining power/battery internal to apps

The gas-gauge readings (voltage, current, temperature, capacity, health,
charge state) are already exported by stock firmware; add the one remaining
safe reader, furi_hal_power_insomnia_level. furi_hal_power_init stays
disabled because re-initialising the power HAL from an app is unsafe.
---
 README.md | 4 ++++
 build.sh  | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 6c83dfd..811ff68 100644
--- a/README.md
+++ b/README.md
@@ -178,6 +178,10 @@ symbol costs one API-table entry.
   without going through the firmware's serial profile. The coprocessor
   firmware-update calls (`ble_glue_fus_stack_delete/install`) are deliberately
   left disabled, since they can erase the radio stack.
+* **Power / battery internals**: the gas-gauge readings (voltage, current,
+  temperature, remaining/full/design capacity, health, charge state) are
+  already exported by stock firmware. This build also enables
+  `furi_hal_power_insomnia_level`; `furi_hal_power_init` stays disabled.
 
 `build.sh` also widens the GAP roles the firmware initialises
 (`GAP_PERIPHERAL_ROLE | GAP_CENTRAL_ROLE | GAP_OBSERVER_ROLE`) in
diff --git a/build.sh b/build.sh
index 360e70d..030fcab 100755
--- a/build.sh
+++ b/build.sh
@@ -112,6 +112,13 @@ EXPORT_ENABLE+='
 ^ble_glue_(start|stop|get_c2_status|get_hardfault_info|force_c2_mode)$
 ^furi_hal_bt_init$
 '
+# Power / battery internals: the gas-gauge readings (voltage, current,
+# temperature, capacity, health, charge state) are already exported by stock
+# firmware; this adds the remaining safe reader. furi_hal_power_init stays
+# disabled (re-initialising the power HAL from an app is unsafe).
+EXPORT_ENABLE+='
+^furi_hal_power_insomnia_level$
+'
 export EXPORT_ENABLE
 if grep -q "^Function,?," "$API_CSV" || ! grep -qE "^Header,\+,.*ble_hci_le\.h" "$API_CSV"; then
     # fbt notices the new headers, rewrites the csv with '?' entries and stops.