Add DFU descriptors.

1 files changed, 30 insertions, 0 deletions

diff --git a/usb/dfu.h b/usb/dfu.h
new file mode 100644
index 0000000..ed6c6c9
--- /dev/null
+++ b/usb/dfu.h
@@ -0,0 +1,30 @@
+#ifndef DFU_H
+#define DFU_H
+
+struct DFU_Functional_desc {
+	uint8_t bLength;
+	uint8_t bDescriptorType;
+	uint8_t bmAttributes;
+	uint16_t wDetachTimeOut;
+	uint16_t wTransferSize;
+	uint16_t bcdDFUVersion;
+} __attribute__((packed));
+
+constexpr DFU_Functional_desc dfu_functional_desc(
+		uint8_t bmAttributes,
+		uint16_t wDetachTimeOut,
+		uint16_t wTransferSize,
+		uint16_t bcdDFUVersion
+	) {
+	
+	return {
+		sizeof(DFU_Functional_desc),
+		0x21,
+		bmAttributes,
+		wDetachTimeOut,
+		wTransferSize,
+		bcdDFUVersion
+	};
+}
+
+#endif