From 49d0c22b11732da3be622d7c550ecb4249bf17ac Mon Sep 17 00:00:00 2001 From: Damien George Date: Wed, 20 Sep 2023 19:14:22 +1000 Subject: [PATCH] stm32/mboot: Expand device descriptor to make it easier to understand. Signed-off-by: Damien George --- ports/stm32/mboot/main.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/ports/stm32/mboot/main.c b/ports/stm32/mboot/main.c index 40bcd23ed..ed5ed1e3f 100644 --- a/ports/stm32/mboot/main.c +++ b/ports/stm32/mboot/main.c @@ -1024,10 +1024,20 @@ __ALIGN_BEGIN static const uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __AL }; static const uint8_t dev_descr[0x12] = { - 0x12, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x40, + 0x12, // bLength + 0x01, // bDescriptorType: Device + 0x00, 0x01, // USB version: 1.00 + 0x00, // bDeviceClass + 0x00, // bDeviceSubClass + 0x00, // bDeviceProtocol + 0x40, // bMaxPacketSize LOBYTE(MBOOT_USB_VID), HIBYTE(MBOOT_USB_VID), LOBYTE(MBOOT_USB_PID), HIBYTE(MBOOT_USB_PID), - 0x00, 0x22, 0x01, 0x02, 0x03, 0x01 + 0x00, 0x22, // bcdDevice: 22.00 + 0x01, // iManufacturer + 0x02, // iProduct + 0x03, // iSerialNumber + 0x01, // bNumConfigurations: 1 }; // This may be modified by USBD_GetDescriptor