Add small tutorial for compilation on Linux

README.md

@@ -1,13 +1,39 @@
 # Pinecil Firmware Updater
 Application for updating Pine64's Pinecil soldering iron.
 
-# Supported platforms
+## Supported platforms
 
 - [X] Windows 7 - 10 (64-bit)
 - [X] MacOS
-- [ ] Linux
+- [X] Linux
 
-# Screenshots
+## How to compile (and run)
 
-![Screenshot 1](https://i.imgur.com/WYzyAUE.png)
-![Screenshot 2](https://i.imgur.com/BmVQINS.png)
+### Windows, MAC
+
+Download the binaries from the [releases page](https://github.com/pine64/pinecil-firmware-updater/releases)
+
+### Linux
+
+The following steps assume you have the Qt, dfu-util and libusb dependencies
+already installed. Depending on your actual Linux distribution these dependencies
+might have slightly different names, and can be installed through your favourite
+package manager.
+
+
+```
+# Create make file using Qt
+qmake
+# Build
+make
+# Link dfu-util symbolically to this folder
+ln -s /usr/bin/dfu-util .
+# Run the tool
+sudo ./pinecil_firmware_updater
+```
+
+## Screenshots
+
+![Screenshot 1 - Windows](https://i.imgur.com/WYzyAUE.png)
+![Screenshot 2 - Mac](https://i.imgur.com/BmVQINS.png)
+![Screenshot 3 - Linux](https://i.imgur.com/FOVMO4P.png)

pinecil_firmware_updater.pro

@@ -44,6 +44,8 @@ macx: LIBS += -L$$PWD/deps/libusb/lib/ -lusb-1.0
 macx: INCLUDEPATH += $$PWD/deps/libusb/include
 macx: DEPENDPATH += $$PWD/deps/libusb/include
 
+unix:!android: LIBS += -lusb-1.0
+
 DISTFILES += \
     pinecil-instructions.png