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authorDamien George <damien@micropython.org>2023-09-20 19:14:22 +1000
committerDamien George <damien@micropython.org>2023-12-20 19:31:15 +1100
commit49d0c22b11732da3be622d7c550ecb4249bf17ac (patch)
tree26436f4c19855be9385af72f68ef38697e247c04
parent859f219690db5a1b91865e0a70c2b71d19be42a6 (diff)
stm32/mboot: Expand device descriptor to make it easier to understand.
Signed-off-by: Damien George <damien@micropython.org>
-rw-r--r--ports/stm32/mboot/main.c14
1 files 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