Add USB stub, add logging using spdlog

.vscode/c_cpp_properties.json

@@ -5,7 +5,10 @@
         "compilerPath": "/usr/bin/clang",
         "cStandard": "c11",
         "cppStandard": "c++17",
-        "compileCommands": "/builddir/compile_commands.json"
+        "compileCommands": "${workspaceFolder}/builddir/compile_commands.json",
+        "browse": {
+          "path": ["${workspaceFolder}"]
+        }
       }
     ],
     "version": 4

.vscode/settings.json

@@ -78,6 +78,10 @@
                             "typeindex": "cpp",
                             "typeinfo": "cpp",
                             "valarray": "cpp",
-                            "variant": "cpp"
+                            "variant": "cpp",
+                            "csignal": "cpp",
+                            "any": "cpp",
+                            "regex": "cpp",
+                            "future": "cpp"
                         }
 }

inc/IUsb.hpp

@@ -0,0 +1,16 @@
+#include "UsbTypes.hpp"
+
+#include <vector>
+
+#pragma once
+
+namespace ptprnt::driver {
+
+class IUsb {
+   public:
+    virtual ~IUsb(){};
+
+    virtual std::vector<UsbDevice> listDevices() = 0;
+};
+
+}  // namespace ptprnt::driver

inc/Usb.hpp

@@ -0,0 +1,20 @@
+#include "IUsb.hpp"
+
+#include <libusb-1.0/libusb.h>
+
+#pragma once
+
+namespace ptprnt::driver {
+
+class Usb : public IUsb {
+ public:
+   Usb();
+   ~Usb() override;
+
+   std::vector<UsbDevice> listDevices() override;
+
+ private: 
+  
+};
+
+}  // namespace ptprnt::driver

inc/UsbTypes.hpp

@@ -0,0 +1,13 @@
+
+#include <libusb-1.0/libusb.h>
+
+#pragma once
+
+namespace ptprnt::driver {
+
+struct UsbDevice {
+    libusb_device* dev{nullptr};
+    libusb_device_handle* hndl{nullptr};
+};
+
+}  // namespace ptprnt::driver

meson.build

@@ -1,10 +1,11 @@
 project('ptprnt', 'cpp',
-    version: '0.1.0',
+    version: 'v0.1.0-'+run_command('git', 'rev-parse',  '--short', 'HEAD').stdout().strip(),
     license: 'GPLv3',
     default_options : ['c_std=c11', 'cpp_std=c++17']
 )
 
 usbdep = dependency('libusb-1.0')
+logdep = dependency('spdlog')
 
 incdir = include_directories('inc')
 
@@ -16,7 +17,9 @@ srcs = [
 ]
 
 executable(
-    'ptprnt', srcs,
+    'ptprnt', 
+    srcs,
     include_directories : incdir,
-    dependencies : usbdep
+    dependencies : [usbdep, logdep],
+    cpp_args : ['-DPROJ_VERSION="'+meson.project_version()+'"']
 )

src/Usb.cpp

@@ -0,0 +1,37 @@
+#include "Usb.hpp"
+
+#include <iostream>
+#include <iomanip>
+
+namespace ptprnt::driver {
+
+Usb::Usb() {
+    std::cout << "Usb starting" << std::endl;
+    libusb_init(NULL);
+}
+Usb::~Usb() {
+    std::cout << "Usb stopping" << std::endl;
+}
+
+std::vector<UsbDevice> Usb::listDevices() {
+    libusb_device ** devs;
+    libusb_device *dev;
+    struct libusb_device_descriptor desc;
+    int r,i=0;
+
+    libusb_get_device_list(NULL, &devs);
+
+    while ((dev=devs[i++]) != NULL) {
+		if ((r=libusb_get_device_descriptor(dev, &desc)) < 0) {
+			std::cerr << "failed to open device" << std::endl;
+			libusb_free_device_list(devs, 1);
+		}
+
+        std::cout << std::hex << std::setw(4) << desc.idVendor << ":" << desc.idProduct;
+        std::cout << std::endl;
+    }
+
+    return std::vector<UsbDevice>();
+}
+
+}  // namespace ptprnt::driver

src/main.cpp

@@ -6,11 +6,13 @@
 #include "Usb.hpp"
 
 #include <libusb-1.0/libusb.h>
+#include <spdlog/spdlog.h>
+
 using namespace ptprnt;
 
 int main(int argc, char** argv) {
 
-    std::cout << "Hello ptprnt!" << std::endl;
+    spdlog::info("Starting ptprnt {}", PROJ_VERSION);
 
     auto usb = std::make_unique<driver::Usb>();
     auto devs = usb->listDevices();
@@ -25,3 +27,4 @@ int main(int argc, char** argv) {
 
     return 0;
 }
+