Merge 'Tool to enumerate CMSIS-DAP debuggers'

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
+### Added
+- `ls_cmsis_dap`: A tool to enumerate CMSIS-DAP debuggers
+
 ### Changed
 - `main.py` was moved into an app to allow easier reconfiguration of the
   default app.  The new `main.py` points to the "old" one so behavior is not

tools/ls_cmsis_dap/Makefile

+.PHONY: all clean
+
+all: ls_cmsis_dap-hidraw ls_cmsis_dap-libusb
+
+clean:
+	-rm *.o ls_cmsis_dap-hidraw ls_cmsis_dap-libusb
+
+ls_cmsis_dap.o: ls_cmsis_dap.c
+
+ls_cmsis_dap-hidraw: LDFLAGS=-lhidapi-hidraw
+ls_cmsis_dap-hidraw: ls_cmsis_dap.o
+	$(CC) $(LDFLAGS) -o $@ $<
+
+ls_cmsis_dap-libusb: LDFLAGS=-lhidapi-libusb
+ls_cmsis_dap-libusb: ls_cmsis_dap.o
+	$(CC) $(LDFLAGS) -o $@ $<

tools/ls_cmsis_dap/ls_cmsis_dap.c

+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <hidapi/hidapi.h>
+
+int main(int argc, char *argv[])
+{
+	int rc = 0;
+	if ((rc = hid_init())) {
+		fprintf(stderr, "hid_init: %d\n", rc);
+		goto done;
+	}
+
+	struct hid_device_info *hid_devs = hid_enumerate(0x0d28, 0x0204);
+	if (!hid_devs) {
+		fprintf(stderr, "hid_enumerate: NULL\n");
+		rc = 1;
+		goto done;
+	}
+
+	for (struct hid_device_info *dev = hid_devs; dev; dev = dev->next) {
+		fprintf(stdout, "%s\n", dev->path);
+	}
+
+done:
+	if (hid_devs) {
+		hid_free_enumeration(hid_devs);
+	}
+	hid_exit();
+	return -1;
+}