More README updates

Author: manuelbl

README.md

@@ -74,6 +74,7 @@ public class EnumerateDevices {
 - [Bulk Transfer](examples/bulk_transfer/) demonstrates how to find a USB device, open it and communicate using bulk transfer.
 - [Enumeration](examples/enumerate/) lists all connected USB devices and displays information about interfaces and endpoints.
 - [Monitor](examples/monitor/) lists the connected USB devices and then monitors for USB devices being connected and disconnnected.
+- [Device Firmware Upload (DFU) for STM32](examples/stm_dfu) uploads firmware to STM32 microcontrollers supporting the built-in DFU mode.
 
 
 ## Prerequisite

examples/bulk_transfer/README.md

@@ -31,17 +31,6 @@ $ mvn -version
 
 If it is not present, install it, typically using package manager like *Homebrew* on macOS, *Chocolately* on Windows and *apt* on Linux.
 
-### Create the *java-does-usb* library
-
-Since the *java-does-usb* library is not yet available on Maven Central, it must be built locally:
-
-```shell
-$ cd JavaDoesUSB/java-does-usb
-$ mvn install
-```
-
-The result will be put in your local Maven repository.
-
 ### Run the sample
 
 ```shell

examples/enumerate/README.md

@@ -30,17 +30,6 @@ $ mvn -version
 
 If it is not present, install it, typically using package manager like *Homebrew* on macOS, *Chocolately* on Windows and *apt* on Linux.
 
-### Create the *java-does-usb* library
-
-Since the *java-does-usb* library is not yet available on Maven Central, it must be built locally:
-
-```shell
-$ cd JavaDoesUSB/java-does-usb
-$ mvn install
-```
-
-The result will be put in your local Maven repository.
-
 ### Run the sample
 
 ```shell

examples/monitor/README.md

@@ -30,17 +30,6 @@ $ mvn -version
 
 If it is not present, install it, typically using package manager like *Homebrew* on macOS, *Chocolately* on Windows and *apt* on Linux.
 
-### Create the *java-does-usb* library
-
-Since the *java-does-usb* library is not yet available on Maven Central, it must be built locally:
-
-```shell
-$ cd JavaDoesUSB/java-does-usb
-$ mvn install
-```
-
-The result will be put in your local Maven repository.
-
 ### Run the sample
 
 ```shell

examples/stm_dfu/README.md

@@ -34,19 +34,27 @@ If it is not present, install it, typically using package manager like *Homebrew
 
 ### Build the application
 
-Since the *java-does-usb* library is not yet available on Maven Central, it must be built locally:
-
 ```shell
 $ mvn clean package
 ```
 
-The result will be put in your local Maven repository.
-
-### Run the application
+### Put the STM32 development board in DFU mode
 
 - Connect an STM32 development board (like a BlackPill board) to your computer while pressing the *Boot* button.
 - Ensure that it is DFU mode by checking macOS *System Information* or Windows *Device Manager*. The device should appear as "STM32 BOOTLOADER".
-- Run the command below (adapting the file path depending on your specific board).
+
+On Windows, the *WinUSB* driver must be installed. See https://github.com/manuelbl/JavaDoesUSB/wiki/DFU-on-Windows for additional information.
+
+On many Linux distributions, the default permissions of USB devices do not allow access. To change it, create a file `/etc/udev/rules.d/50-stm-dfu.rules` with the below content:
+
+```text
+SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE="0666"
+```
+
+
+### Run the application
+
+Run the command below (adapting the file path depending on your specific board):
 
 ```shell
 $ java --enable-preview --enable-native-access=ALL-UNNAMED -jar target/stm_dfu-0.4.0.jar ../../test-devices/loopback-stm32/bin/blackpill-f401cc.bin