feat(transport): implement macOS USB discovery using IOKit

Cargo.toml

@@ -45,6 +45,9 @@ rustix = { version = "0.38", features = ["fs", "termios"] }
 slotmap = "1.0"
 tokio-udev = "0.10"
 udev = "0.9"
+core-foundation = "0.10"
+io-kit-sys = "0.4"
+mach2 = "0.4"
 utoipa = "5.4"
 utoipa-axum = "0.2"
 utoipa-swagger-ui = { version = "9.0", features = ["axum"] }

README.md

@@ -85,7 +85,8 @@ sudo apt-get install libudev-dev libssl-dev
 
 ### macOS
 
-macOS support is planned, but USB discovery using IOKit is not yet implemented.
+macOS is supported. USB discovery uses IOKit, which is part of the system
+frameworks and requires no additional dependencies.
 
 ## Building
 

mujina-miner/Cargo.toml

@@ -51,6 +51,11 @@ ruint = "1.17.0"
 tokio-udev = { workspace = true }
 udev = { workspace = true }
 
+[target.'cfg(target_os = "macos")'.dependencies]
+core-foundation = { workspace = true }
+io-kit-sys = { workspace = true }
+mach2 = { workspace = true }
+
 [[bin]]
 name = "mujina-minerd"
 path = "src/bin/minerd.rs"

mujina-miner/src/transport/usb.rs

@@ -52,7 +52,11 @@ impl UsbDeviceInfo {
                 {
                     linux::find_serial_ports_for_device(&self.device_path)
                 }
-                #[cfg(not(target_os = "linux"))]
+                #[cfg(target_os = "macos")]
+                {
+                    macos::find_serial_ports_for_device(&self.device_path)
+                }
+                #[cfg(not(any(target_os = "linux", target_os = "macos")))]
                 {
                     Ok(vec![])
                 }