From 971fd5b4a321c16cd6d2cdbcc2286e00b2fde20a Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:20:36 +0200
Subject: [PATCH 1/8] improve SCEX FS usage code

---
 mission/payload/ScexDeviceHandler.cpp | 37 +++++++++++++++++----------
 mission/payload/ScexDeviceHandler.h   |  1 +
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/mission/payload/ScexDeviceHandler.cpp b/mission/payload/ScexDeviceHandler.cpp
index f44aa78b..40cbfbab 100644
--- a/mission/payload/ScexDeviceHandler.cpp
+++ b/mission/payload/ScexDeviceHandler.cpp
@@ -23,7 +23,10 @@ ScexDeviceHandler::ScexDeviceHandler(object_id_t objectId, ScexUartReader& reade
 
 ScexDeviceHandler::~ScexDeviceHandler() {}
 
-void ScexDeviceHandler::doStartUp() { setMode(MODE_ON); }
+void ScexDeviceHandler::doStartUp() {
+  filesystemChecks();
+  setMode(MODE_ON);
+}
 
 void ScexDeviceHandler::doShutDown() {
   reader.reset();
@@ -280,18 +283,8 @@ ReturnValue_t ScexDeviceHandler::interpretDeviceReply(DeviceCommandId_t id, cons
 }
 
 void ScexDeviceHandler::performOperationHook() {
-  auto mntPrefix = sdcMan.getCurrentMountPrefix();
-  if (mntPrefix != nullptr) {
-    std::filesystem::path fullFilePath = mntPrefix;
-    std::error_code e;
-    fullFilePath /= "scex";
-    bool fileExists = std::filesystem::exists(fullFilePath, e);
-    if (not fileExists) {
-      bool created = std::filesystem::create_directory(fullFilePath, e);
-      if (not created) {
-        sif::error << "Could not create SCEX directory: " << e << std::endl;
-      }
-    }
+  if (getMode() != MODE_OFF) {
+    filesystemChecks();
   }
   uint32_t remainingMillis = finishCountdown.getRemainingMillis();
   if (commandActive and finishCountdown.hasTimedOut()) {
@@ -319,6 +312,24 @@ ReturnValue_t ScexDeviceHandler::initializeLocalDataPool(localpool::DataPool& lo
   return OK;
 }
 
+void ScexDeviceHandler::filesystemChecks() {
+  auto mntPrefix = sdcMan.getCurrentMountPrefix();
+  if (mntPrefix == nullptr or !sdcMan.isSdCardUsable(std::nullopt)) {
+    sif::warning << "SCEX: Filesystem currently unavailable" << std::endl;
+  } else {
+    std::filesystem::path fullFilePath = mntPrefix;
+    std::error_code e;
+    fullFilePath /= "scex";
+    bool fileExists = std::filesystem::exists(fullFilePath, e);
+    if (not fileExists) {
+      bool created = std::filesystem::create_directory(fullFilePath, e);
+      if (not created) {
+        sif::error << "Could not create SCEX directory: " << e << std::endl;
+      }
+    }
+  }
+}
+
 ReturnValue_t ScexDeviceHandler::generateNewScexFile(const char* cmdName) {
   char timeString[64]{};
   auto activeSd = sdcMan.getActiveSdCard();
diff --git a/mission/payload/ScexDeviceHandler.h b/mission/payload/ScexDeviceHandler.h
index e7721ef6..6e1924e3 100644
--- a/mission/payload/ScexDeviceHandler.h
+++ b/mission/payload/ScexDeviceHandler.h
@@ -55,6 +55,7 @@ class ScexDeviceHandler : public DeviceHandlerBase {
   ReturnValue_t buildCommandFromCommand(DeviceCommandId_t deviceCommand, const uint8_t *commandData,
                                         size_t commandDataLen) override;
   void fillCommandAndReplyMap() override;
+  void filesystemChecks();
   ReturnValue_t scanForReply(const uint8_t *start, size_t remainingSize, DeviceCommandId_t *foundId,
                              size_t *foundLen) override;
   ReturnValue_t interpretDeviceReply(DeviceCommandId_t id, const uint8_t *packet) override;

From d9a010f6bdd01964ed92ed8c7e884359c3f8ad40 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:21:53 +0200
Subject: [PATCH 2/8] changelog

---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 61ee5871..a929dcfd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,11 @@ will consitute of a breaking change warranting a new major release:
 
 - Small SCEX fix: The temperatur check option was not passed
   on for commands with a user data size larger than 1.
+- SCEX: Properly check whether filesystem is usable for filesystem checks
+
+## Changed
+
+- SCEX: Only perform filesystem checks when not in OFF mode.
 
 # [v6.2.0] 2023-07-26
 

From 58c19e90ebee9e11e04d0dec4293a30406d255bb Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:29:28 +0200
Subject: [PATCH 3/8] changelog fix

---
 CHANGELOG.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index adc703a5..8dd8f9e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,12 +21,13 @@ will consitute of a breaking change warranting a new major release:
 - Small SCEX fix: The temperatur check option was not passed
   on for commands with a user data size larger than 1.
 - SCEX: Properly check whether filesystem is usable for filesystem checks
+- `EiveSystem`: Add a small delay between triggering an event for FDIR reboots and sending the
+  command to the core controller.
 
 ## Changed
 
 - SCEX: Only perform filesystem checks when not in OFF mode.
-- `EiveSystem`: Add a small delay between triggering an event for FDIR reboots and sending the
-  command to the core controller.
+
 - The `EiveSystem` now only sends reboot commands targetting the same image.
 
 # [v6.2.0] 2023-07-26

From c120ce8617c6a09f7afb612898e02927a008f494 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:29:55 +0200
Subject: [PATCH 4/8] remove newline

---
 CHANGELOG.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8dd8f9e2..4e0c21a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,7 +27,6 @@ will consitute of a breaking change warranting a new major release:
 ## Changed
 
 - SCEX: Only perform filesystem checks when not in OFF mode.
-
 - The `EiveSystem` now only sends reboot commands targetting the same image.
 
 # [v6.2.0] 2023-07-26

From f0bbc1d09026ed9532113cc909da5e9183e0a0e1 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:39:42 +0200
Subject: [PATCH 5/8] added filesystem down event

---
 mission/payload/ScexDeviceHandler.cpp | 23 +++++++++++++++++++----
 mission/payload/ScexDeviceHandler.h   |  2 ++
 mission/payload/scexHelpers.h         |  1 +
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/mission/payload/ScexDeviceHandler.cpp b/mission/payload/ScexDeviceHandler.cpp
index 40cbfbab..6281142d 100644
--- a/mission/payload/ScexDeviceHandler.cpp
+++ b/mission/payload/ScexDeviceHandler.cpp
@@ -19,7 +19,9 @@ using namespace returnvalue;
 
 ScexDeviceHandler::ScexDeviceHandler(object_id_t objectId, ScexUartReader& reader, CookieIF* cookie,
                                      SdCardMountedIF& sdcMan)
-    : DeviceHandlerBase(objectId, reader.getObjectId(), cookie), sdcMan(sdcMan), reader(reader) {}
+    : DeviceHandlerBase(objectId, reader.getObjectId(), cookie), sdcMan(sdcMan), reader(reader) {
+  fsUnusableEventCd.timeOut();
+}
 
 ScexDeviceHandler::~ScexDeviceHandler() {}
 
@@ -218,8 +220,12 @@ ReturnValue_t ScexDeviceHandler::interpretDeviceReply(DeviceCommandId_t id, cons
       }
       fileNameSet = true;
     } else {
-      ofstream out(fileName,
-                   ofstream::binary | ofstream::app);  // append
+      if (!sdcMan.isSdCardUsable(std::nullopt)) {
+        fsUnsableEvent();
+        return returnvalue::FAILED;
+      }
+      // Append to existing file.
+      ofstream out(fileName, ofstream::binary | ofstream::app);
       if (out.bad()) {
         sif::error << "ScexDeviceHandler::handleValidReply: Could not open file " << fileName
                    << std::endl;
@@ -330,6 +336,14 @@ void ScexDeviceHandler::filesystemChecks() {
   }
 }
 
+void ScexDeviceHandler::fsUnsableEvent() {
+  if (fsUnusableEventCd.isBusy()) {
+    return;
+  }
+  triggerEvent(scex::FS_UNUSABLE);
+  fsUnusableEventCd.resetTimer();
+}
+
 ReturnValue_t ScexDeviceHandler::generateNewScexFile(const char* cmdName) {
   char timeString[64]{};
   auto activeSd = sdcMan.getActiveSdCard();
@@ -339,7 +353,8 @@ ReturnValue_t ScexDeviceHandler::generateNewScexFile(const char* cmdName) {
 
   std::ostringstream oss;
   auto prefix = sdcMan.getCurrentMountPrefix();
-  if (prefix == nullptr) {
+  if (prefix == nullptr or !sdcMan.isSdCardUsable(std::nullopt)) {
+    fsUnsableEvent();
     return returnvalue::FAILED;
   }
   timeval tv;
diff --git a/mission/payload/ScexDeviceHandler.h b/mission/payload/ScexDeviceHandler.h
index 6e1924e3..ed30668f 100644
--- a/mission/payload/ScexDeviceHandler.h
+++ b/mission/payload/ScexDeviceHandler.h
@@ -42,6 +42,7 @@ class ScexDeviceHandler : public DeviceHandlerBase {
   scex::Cmds currCmd = scex::Cmds::PING;
   SdCardMountedIF &sdcMan;
   Countdown finishCountdown = Countdown(LONG_CD);
+  Countdown fsUnusableEventCd = Countdown(60000);
 
   // DeviceHandlerBase private function implementation
   void doStartUp() override;
@@ -49,6 +50,7 @@ class ScexDeviceHandler : public DeviceHandlerBase {
   ScexHelper helper;
   ScexUartReader &reader;
 
+  void fsUnsableEvent();
   void performOperationHook() override;
   ReturnValue_t buildNormalDeviceCommand(DeviceCommandId_t *id) override;
   ReturnValue_t buildTransitionDeviceCommand(DeviceCommandId_t *id) override;
diff --git a/mission/payload/scexHelpers.h b/mission/payload/scexHelpers.h
index aa0f320b..9b9e8f14 100644
--- a/mission/payload/scexHelpers.h
+++ b/mission/payload/scexHelpers.h
@@ -17,6 +17,7 @@ static constexpr uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::SCEX_HANDLER;
 
 static constexpr Event MISSING_PACKET = event::makeEvent(SUBSYSTEM_ID, 0, severity::LOW);
 static constexpr Event EXPERIMENT_TIMEDOUT = event::makeEvent(SUBSYSTEM_ID, 1, severity::LOW);
+static constexpr Event FS_UNUSABLE = event::makeEvent(SUBSYSTEM_ID, 2, severity::LOW);
 //! FRAM, One Cell or All cells command finished. P1: Command ID
 static constexpr Event MULTI_PACKET_COMMAND_DONE =
     event::makeEvent(SUBSYSTEM_ID, 2, severity::INFO);

From beb79d2fb4be89e7a96d2abe0430d40986412182 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:41:54 +0200
Subject: [PATCH 6/8] that should do the job

---
 bsp_hosted/fsfwconfig/events/translateEvents.cpp   | 7 +++++--
 bsp_hosted/fsfwconfig/objects/translateObjects.cpp | 2 +-
 generators/bsp_hosted_events.csv                   | 1 +
 generators/bsp_q7s_events.csv                      | 1 +
 generators/events/translateEvents.cpp              | 7 +++++--
 generators/objects/translateObjects.cpp            | 2 +-
 linux/fsfwconfig/events/translateEvents.cpp        | 7 +++++--
 linux/fsfwconfig/objects/translateObjects.cpp      | 2 +-
 mission/payload/ScexDeviceHandler.h                | 3 ++-
 mission/payload/scexHelpers.h                      | 2 +-
 tmtc                                               | 2 +-
 11 files changed, 24 insertions(+), 12 deletions(-)

diff --git a/bsp_hosted/fsfwconfig/events/translateEvents.cpp b/bsp_hosted/fsfwconfig/events/translateEvents.cpp
index 2899592d..3a53a4fb 100644
--- a/bsp_hosted/fsfwconfig/events/translateEvents.cpp
+++ b/bsp_hosted/fsfwconfig/events/translateEvents.cpp
@@ -1,7 +1,7 @@
 /**
- * @brief    Auto-generated event translation file. Contains 301 translations.
+ * @brief    Auto-generated event translation file. Contains 302 translations.
  * @details
- * Generated on: 2023-07-26 12:51:20
+ * Generated on: 2023-08-02 09:40:31
  */
 #include "translateEvents.h"
 
@@ -261,6 +261,7 @@ const char *TX_OFF_STRING = "TX_OFF";
 const char *MISSING_PACKET_STRING = "MISSING_PACKET";
 const char *EXPERIMENT_TIMEDOUT_STRING = "EXPERIMENT_TIMEDOUT";
 const char *MULTI_PACKET_COMMAND_DONE_STRING = "MULTI_PACKET_COMMAND_DONE";
+const char *FS_UNUSABLE_STRING = "FS_UNUSABLE";
 const char *SET_CONFIGFILEVALUE_FAILED_STRING = "SET_CONFIGFILEVALUE_FAILED";
 const char *GET_CONFIGFILEVALUE_FAILED_STRING = "GET_CONFIGFILEVALUE_FAILED";
 const char *INSERT_CONFIGFILEVALUE_FAILED_STRING = "INSERT_CONFIGFILEVALUE_FAILED";
@@ -821,6 +822,8 @@ const char *translateEvents(Event event) {
       return EXPERIMENT_TIMEDOUT_STRING;
     case (13802):
       return MULTI_PACKET_COMMAND_DONE_STRING;
+    case (13803):
+      return FS_UNUSABLE_STRING;
     case (13901):
       return SET_CONFIGFILEVALUE_FAILED_STRING;
     case (13902):
diff --git a/bsp_hosted/fsfwconfig/objects/translateObjects.cpp b/bsp_hosted/fsfwconfig/objects/translateObjects.cpp
index a0002c24..8a6f23a0 100644
--- a/bsp_hosted/fsfwconfig/objects/translateObjects.cpp
+++ b/bsp_hosted/fsfwconfig/objects/translateObjects.cpp
@@ -2,7 +2,7 @@
  * @brief  Auto-generated object translation file.
  * @details
  * Contains 171 translations.
- * Generated on: 2023-07-26 12:51:20
+ * Generated on: 2023-08-02 09:40:31
  */
 #include "translateObjects.h"
 
diff --git a/generators/bsp_hosted_events.csv b/generators/bsp_hosted_events.csv
index 0cb9ba70..1c6f646d 100644
--- a/generators/bsp_hosted_events.csv
+++ b/generators/bsp_hosted_events.csv
@@ -255,6 +255,7 @@ Event ID (dec); Event ID (hex); Name; Severity; Description; File Path
 13800;0x35e8;MISSING_PACKET;LOW;No description;mission/payload/scexHelpers.h
 13801;0x35e9;EXPERIMENT_TIMEDOUT;LOW;No description;mission/payload/scexHelpers.h
 13802;0x35ea;MULTI_PACKET_COMMAND_DONE;INFO;No description;mission/payload/scexHelpers.h
+13803;0x35eb;FS_UNUSABLE;LOW;No description;mission/payload/scexHelpers.h
 13901;0x364d;SET_CONFIGFILEVALUE_FAILED;MEDIUM;No description;mission/utility/GlobalConfigHandler.h
 13902;0x364e;GET_CONFIGFILEVALUE_FAILED;MEDIUM;No description;mission/utility/GlobalConfigHandler.h
 13903;0x364f;INSERT_CONFIGFILEVALUE_FAILED;MEDIUM;No description;mission/utility/GlobalConfigHandler.h
diff --git a/generators/bsp_q7s_events.csv b/generators/bsp_q7s_events.csv
index 0cb9ba70..1c6f646d 100644
--- a/generators/bsp_q7s_events.csv
+++ b/generators/bsp_q7s_events.csv
@@ -255,6 +255,7 @@ Event ID (dec); Event ID (hex); Name; Severity; Description; File Path
 13800;0x35e8;MISSING_PACKET;LOW;No description;mission/payload/scexHelpers.h
 13801;0x35e9;EXPERIMENT_TIMEDOUT;LOW;No description;mission/payload/scexHelpers.h
 13802;0x35ea;MULTI_PACKET_COMMAND_DONE;INFO;No description;mission/payload/scexHelpers.h
+13803;0x35eb;FS_UNUSABLE;LOW;No description;mission/payload/scexHelpers.h
 13901;0x364d;SET_CONFIGFILEVALUE_FAILED;MEDIUM;No description;mission/utility/GlobalConfigHandler.h
 13902;0x364e;GET_CONFIGFILEVALUE_FAILED;MEDIUM;No description;mission/utility/GlobalConfigHandler.h
 13903;0x364f;INSERT_CONFIGFILEVALUE_FAILED;MEDIUM;No description;mission/utility/GlobalConfigHandler.h
diff --git a/generators/events/translateEvents.cpp b/generators/events/translateEvents.cpp
index 2899592d..3a53a4fb 100644
--- a/generators/events/translateEvents.cpp
+++ b/generators/events/translateEvents.cpp
@@ -1,7 +1,7 @@
 /**
- * @brief    Auto-generated event translation file. Contains 301 translations.
+ * @brief    Auto-generated event translation file. Contains 302 translations.
  * @details
- * Generated on: 2023-07-26 12:51:20
+ * Generated on: 2023-08-02 09:40:31
  */
 #include "translateEvents.h"
 
@@ -261,6 +261,7 @@ const char *TX_OFF_STRING = "TX_OFF";
 const char *MISSING_PACKET_STRING = "MISSING_PACKET";
 const char *EXPERIMENT_TIMEDOUT_STRING = "EXPERIMENT_TIMEDOUT";
 const char *MULTI_PACKET_COMMAND_DONE_STRING = "MULTI_PACKET_COMMAND_DONE";
+const char *FS_UNUSABLE_STRING = "FS_UNUSABLE";
 const char *SET_CONFIGFILEVALUE_FAILED_STRING = "SET_CONFIGFILEVALUE_FAILED";
 const char *GET_CONFIGFILEVALUE_FAILED_STRING = "GET_CONFIGFILEVALUE_FAILED";
 const char *INSERT_CONFIGFILEVALUE_FAILED_STRING = "INSERT_CONFIGFILEVALUE_FAILED";
@@ -821,6 +822,8 @@ const char *translateEvents(Event event) {
       return EXPERIMENT_TIMEDOUT_STRING;
     case (13802):
       return MULTI_PACKET_COMMAND_DONE_STRING;
+    case (13803):
+      return FS_UNUSABLE_STRING;
     case (13901):
       return SET_CONFIGFILEVALUE_FAILED_STRING;
     case (13902):
diff --git a/generators/objects/translateObjects.cpp b/generators/objects/translateObjects.cpp
index fef8fb71..f4779490 100644
--- a/generators/objects/translateObjects.cpp
+++ b/generators/objects/translateObjects.cpp
@@ -2,7 +2,7 @@
  * @brief  Auto-generated object translation file.
  * @details
  * Contains 175 translations.
- * Generated on: 2023-07-26 12:51:20
+ * Generated on: 2023-08-02 09:40:31
  */
 #include "translateObjects.h"
 
diff --git a/linux/fsfwconfig/events/translateEvents.cpp b/linux/fsfwconfig/events/translateEvents.cpp
index 2899592d..3a53a4fb 100644
--- a/linux/fsfwconfig/events/translateEvents.cpp
+++ b/linux/fsfwconfig/events/translateEvents.cpp
@@ -1,7 +1,7 @@
 /**
- * @brief    Auto-generated event translation file. Contains 301 translations.
+ * @brief    Auto-generated event translation file. Contains 302 translations.
  * @details
- * Generated on: 2023-07-26 12:51:20
+ * Generated on: 2023-08-02 09:40:31
  */
 #include "translateEvents.h"
 
@@ -261,6 +261,7 @@ const char *TX_OFF_STRING = "TX_OFF";
 const char *MISSING_PACKET_STRING = "MISSING_PACKET";
 const char *EXPERIMENT_TIMEDOUT_STRING = "EXPERIMENT_TIMEDOUT";
 const char *MULTI_PACKET_COMMAND_DONE_STRING = "MULTI_PACKET_COMMAND_DONE";
+const char *FS_UNUSABLE_STRING = "FS_UNUSABLE";
 const char *SET_CONFIGFILEVALUE_FAILED_STRING = "SET_CONFIGFILEVALUE_FAILED";
 const char *GET_CONFIGFILEVALUE_FAILED_STRING = "GET_CONFIGFILEVALUE_FAILED";
 const char *INSERT_CONFIGFILEVALUE_FAILED_STRING = "INSERT_CONFIGFILEVALUE_FAILED";
@@ -821,6 +822,8 @@ const char *translateEvents(Event event) {
       return EXPERIMENT_TIMEDOUT_STRING;
     case (13802):
       return MULTI_PACKET_COMMAND_DONE_STRING;
+    case (13803):
+      return FS_UNUSABLE_STRING;
     case (13901):
       return SET_CONFIGFILEVALUE_FAILED_STRING;
     case (13902):
diff --git a/linux/fsfwconfig/objects/translateObjects.cpp b/linux/fsfwconfig/objects/translateObjects.cpp
index fef8fb71..f4779490 100644
--- a/linux/fsfwconfig/objects/translateObjects.cpp
+++ b/linux/fsfwconfig/objects/translateObjects.cpp
@@ -2,7 +2,7 @@
  * @brief  Auto-generated object translation file.
  * @details
  * Contains 175 translations.
- * Generated on: 2023-07-26 12:51:20
+ * Generated on: 2023-08-02 09:40:31
  */
 #include "translateObjects.h"
 
diff --git a/mission/payload/ScexDeviceHandler.h b/mission/payload/ScexDeviceHandler.h
index ed30668f..ecde12a5 100644
--- a/mission/payload/ScexDeviceHandler.h
+++ b/mission/payload/ScexDeviceHandler.h
@@ -42,7 +42,7 @@ class ScexDeviceHandler : public DeviceHandlerBase {
   scex::Cmds currCmd = scex::Cmds::PING;
   SdCardMountedIF &sdcMan;
   Countdown finishCountdown = Countdown(LONG_CD);
-  Countdown fsUnusableEventCd = Countdown(60000);
+  Countdown fsUnusableEventCd = Countdown(10000);
 
   // DeviceHandlerBase private function implementation
   void doStartUp() override;
@@ -51,6 +51,7 @@ class ScexDeviceHandler : public DeviceHandlerBase {
   ScexUartReader &reader;
 
   void fsUnsableEvent();
+
   void performOperationHook() override;
   ReturnValue_t buildNormalDeviceCommand(DeviceCommandId_t *id) override;
   ReturnValue_t buildTransitionDeviceCommand(DeviceCommandId_t *id) override;
diff --git a/mission/payload/scexHelpers.h b/mission/payload/scexHelpers.h
index 9b9e8f14..06a8bb07 100644
--- a/mission/payload/scexHelpers.h
+++ b/mission/payload/scexHelpers.h
@@ -17,10 +17,10 @@ static constexpr uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::SCEX_HANDLER;
 
 static constexpr Event MISSING_PACKET = event::makeEvent(SUBSYSTEM_ID, 0, severity::LOW);
 static constexpr Event EXPERIMENT_TIMEDOUT = event::makeEvent(SUBSYSTEM_ID, 1, severity::LOW);
-static constexpr Event FS_UNUSABLE = event::makeEvent(SUBSYSTEM_ID, 2, severity::LOW);
 //! FRAM, One Cell or All cells command finished. P1: Command ID
 static constexpr Event MULTI_PACKET_COMMAND_DONE =
     event::makeEvent(SUBSYSTEM_ID, 2, severity::INFO);
+static constexpr Event FS_UNUSABLE = event::makeEvent(SUBSYSTEM_ID, 3, severity::LOW);
 
 enum Cmds : DeviceCommandId_t {
   PING = 0b00111,
diff --git a/tmtc b/tmtc
index ab770a00..9001a285 160000
--- a/tmtc
+++ b/tmtc
@@ -1 +1 @@
-Subproject commit ab770a0057258cc399072477a42eb0253d919aba
+Subproject commit 9001a285450ddcea1f2a6c5d3c0a2ae438a14b60

From 2fda3e127e70e89dd681bfffaf0658cc0e19f3d1 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:42:24 +0200
Subject: [PATCH 7/8] changelog

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e0c21a3..6e2afb64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,10 @@ will consitute of a breaking change warranting a new major release:
 - SCEX: Only perform filesystem checks when not in OFF mode.
 - The `EiveSystem` now only sends reboot commands targetting the same image.
 
+## Added
+
+- SCEX: Add warning event if filesystem is unusable.
+
 # [v6.2.0] 2023-07-26
 
 - `eive-tmtc`: v5.3.1

From 7fe676fed9ea248699b123e333260efb3cc843e1 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 2 Aug 2023 09:44:22 +0200
Subject: [PATCH 8/8] add event function CALL

---
 mission/payload/ScexDeviceHandler.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mission/payload/ScexDeviceHandler.cpp b/mission/payload/ScexDeviceHandler.cpp
index 6281142d..12c62f7a 100644
--- a/mission/payload/ScexDeviceHandler.cpp
+++ b/mission/payload/ScexDeviceHandler.cpp
@@ -322,6 +322,7 @@ void ScexDeviceHandler::filesystemChecks() {
   auto mntPrefix = sdcMan.getCurrentMountPrefix();
   if (mntPrefix == nullptr or !sdcMan.isSdCardUsable(std::nullopt)) {
     sif::warning << "SCEX: Filesystem currently unavailable" << std::endl;
+    fsUnsableEvent();
   } else {
     std::filesystem::path fullFilePath = mntPrefix;
     std::error_code e;