No build description or instructions

[droidium]

Is this meant for Linux, Windows OSx?
How to build on Windows? Do you need to create some VS project, or do you have to
install make, mingw and or gccwin ?

Not clear at all, some of us are new to Github. A how-to one liner would help a lot.
Thank you.

[jeffsf]

LOL, yeah, it isn't you

macOS

devel]$ git clone https://github.com/Microsoft/uf2
devel]$ git clone https://github.com/adafruit/uf2-samdx1
devel]$ ln -s uf2-samdx1 uf2-samd21
devel]$ cd ufl2
devel/uf2]$ git submodule init
devel/uf2]$ git submodule update
devel/uf2]$ cd uf2tool
devel/uf2/uf2tool]$ make

---

devel/uf2/uf2tool]$ ../built/uf2tool
usage: ../built/uf2tool COMMAND [ARGUMENTS...]
Commands include:
   serial           - run 'serial' port forwarding
   list             - list devices
   dmesg            - dump internal runtime logs from the device
   info             - dump information about the device
   FILE             - write specified BIN or UF2 file
   random           - write randomly generated bin file

devel/uf2/uf2tool]$ ../built/uf2tool info
INFO: UF2 Bootloader v1.23.1-adafruit.2 SFHR
Model: ItsyBitsy M0 Express
Board-ID: SAMD21G18A-ItsyBitsy-v0

page size: 256, total: 256kB

[vkottler]

I'm posting this on all of the issues that seem somewhat relevant, but there's a pip-installable option as well (see: #42 (comment)).

[richdawe]

I took similar steps to #5 (comment) to compile this on Linux, with a couple of additional steps:

1. Install the udev libraries and header files. On Ubuntu, I used apt-get install libudev-dev.
2. Apply the patch below to disable the macOS linker options, and link against libudev, and add a header that's required on Linux.

diff --git a/uf2tool/Makefile b/uf2tool/Makefile
index efc615b..4189070 100644
--- a/uf2tool/Makefile
+++ b/uf2tool/Makefile
@@ -1,3 +1,6 @@
 all:
        mkdir -p ../built
-       $(CC) -g -Wall tool.c ../hidapi/mac/hid.c -I../../uf2-samd21/inc -I../hidapi/hidapi -I. -framework IOKit -framework CoreFoundation -o ../built/uf2tool
+#      $(CC) -g -Wall tool.c ../hidapi/mac/hid.c -I../../uf2-samd21/inc -I../hidapi/hidapi -I. -framework IOKit -framework CoreFoundation -o ../built/uf2tool
+#
+#      apt-get install libudev-dev
+       $(CC) -g -Wall tool.c ../hidapi/linux/hid.c -I../../uf2-samd21/inc -I../hidapi/hidapi -I. -o ../built/uf2tool -ludev
diff --git a/uf2tool/tool.c b/uf2tool/tool.c
index 9ec20a7..c390f54 100644
--- a/uf2tool/tool.c
+++ b/uf2tool/tool.c
@@ -2,6 +2,7 @@
 #include <windows.h>
 #endif
 #include <stdio.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>