From 38e312e8da7250467d3557e830e506723f043ba3 Mon Sep 17 00:00:00 2001
From: Calvin Leng <calvinl@science.xyz>
Date: Mon, 9 Feb 2026 14:46:10 -0800
Subject: [PATCH 1/5] feature: add SD card option for DiskWriterNode

---
 api/nodes/disk_writer.proto | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/api/nodes/disk_writer.proto b/api/nodes/disk_writer.proto
index 08a4b2d..f3594be 100644
--- a/api/nodes/disk_writer.proto
+++ b/api/nodes/disk_writer.proto
@@ -3,7 +3,14 @@ syntax = "proto3";
 package synapse;
 
 message DiskWriterConfig {
+  enum WriteTarget {
+    kUnknown = 0;
+    kDisk = 1;
+    kSdCard = 2;
+  }
+
   string filename = 1;
+  WriteTarget write_target = 2;
 }
 
 message DiskWriterStatus {

From 3d6dab0f22053419398e10829e9a4b3f5d830e62 Mon Sep 17 00:00:00 2001
From: Calvin Leng <calvinl@science.xyz>
Date: Mon, 9 Feb 2026 18:15:37 -0800
Subject: [PATCH 2/5] changed SD card API changes to be more generalizable, and
 added clear indication of disk usage

---
 api/nodes/disk_writer.proto | 11 ++++-------
 api/status.proto            | 11 +++++++++--
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/api/nodes/disk_writer.proto b/api/nodes/disk_writer.proto
index f3594be..8ddaa73 100644
--- a/api/nodes/disk_writer.proto
+++ b/api/nodes/disk_writer.proto
@@ -3,14 +3,11 @@ syntax = "proto3";
 package synapse;
 
 message DiskWriterConfig {
-  enum WriteTarget {
-    kUnknown = 0;
-    kDisk = 1;
-    kSdCard = 2;
-  }
-
   string filename = 1;
-  WriteTarget write_target = 2;
+
+  // String specifying storage device, decided by the implementer
+  // e.g. "disk", "sdcard1", "sdcard2"
+  string storage_device_name = 2;
 }
 
 message DiskWriterStatus {
diff --git a/api/status.proto b/api/status.proto
index 3a73793..306a798 100644
--- a/api/status.proto
+++ b/api/status.proto
@@ -23,9 +23,16 @@ enum DeviceState {
   kError = 4;
 }
 
+message StorageDeviceStatus {
+  // Human-readable name decided by implementer, 
+  // can be dynamic on runtime, e.g. "disk", "sdcard1", "sdcard2"
+  string name = 1;
+  float total_gb = 2;
+  float used_gb = 3;
+}
+
 message DeviceStorage {
-  float total_gb = 1;
-  float used_gb = 2;
+  repeated StorageDeviceStatus storage_devices;
 }
 
 message DevicePower {

From 0d38f9f169a7717a5dbdf63ea0632ebea07180c5 Mon Sep 17 00:00:00 2001
From: Calvin Leng <calvinl@science.xyz>
Date: Mon, 9 Feb 2026 18:32:40 -0800
Subject: [PATCH 3/5] Decided to introduce a storage_device_id concept to be
 in-line with peripheral_id

---
 api/nodes/disk_writer.proto | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/api/nodes/disk_writer.proto b/api/nodes/disk_writer.proto
index 8ddaa73..f754567 100644
--- a/api/nodes/disk_writer.proto
+++ b/api/nodes/disk_writer.proto
@@ -4,10 +4,7 @@ package synapse;
 
 message DiskWriterConfig {
   string filename = 1;
-
-  // String specifying storage device, decided by the implementer
-  // e.g. "disk", "sdcard1", "sdcard2"
-  string storage_device_name = 2;
+  uint32 storage_device_id = 2;
 }
 
 message DiskWriterStatus {

From 7806c20dbbff672cfb0d12f72ed53aa76667c896 Mon Sep 17 00:00:00 2001
From: Calvin Leng <calvinl@science.xyz>
Date: Mon, 9 Feb 2026 19:02:40 -0800
Subject: [PATCH 4/5] Forgot to add a =1

---
 api/status.proto | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/api/status.proto b/api/status.proto
index 306a798..85392ea 100644
--- a/api/status.proto
+++ b/api/status.proto
@@ -23,16 +23,15 @@ enum DeviceState {
   kError = 4;
 }
 
-message StorageDeviceStatus {
-  // Human-readable name decided by implementer, 
-  // can be dynamic on runtime, e.g. "disk", "sdcard1", "sdcard2"
+message StorageDevice {
   string name = 1;
-  float total_gb = 2;
-  float used_gb = 3;
+  uint32 storage_device_id = 2;
+  float total_gb = 3;
+  float used_gb = 4;
 }
 
 message DeviceStorage {
-  repeated StorageDeviceStatus storage_devices;
+  repeated StorageDevice storage_devices = 1;
 }
 
 message DevicePower {

From bff4c3b239c08eb68a4d8e00fe0453029d5fb1da Mon Sep 17 00:00:00 2001
From: Calvin Leng <calvinl@science.xyz>
Date: Tue, 10 Feb 2026 16:31:00 -0800
Subject: [PATCH 5/5] backwards compatibility

---
 api/status.proto | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/api/status.proto b/api/status.proto
index 85392ea..9400c34 100644
--- a/api/status.proto
+++ b/api/status.proto
@@ -31,7 +31,8 @@ message StorageDevice {
 }
 
 message DeviceStorage {
-  repeated StorageDevice storage_devices = 1;
+  reserved 1, 2;
+  repeated StorageDevice storage_devices = 3;
 }
 
 message DevicePower {