# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1695844856 0
# Node ID cddf60418f98dea7dae6658fdec1b5b59d813bed
# Parent  ea7b411aad270ff294fcc4860cc9e85b2af8dc4d
cp2102-decode-ee-desc: decode endpoint descriptors

diff -r ea7b411aad27 -r cddf60418f98 cp2102/decode_usb_desc.c
--- a/cp2102/decode_usb_desc.c	Wed Sep 27 19:39:44 2023 +0000
+++ b/cp2102/decode_usb_desc.c	Wed Sep 27 20:00:56 2023 +0000
@@ -77,6 +77,24 @@
 	printf("  iInterface:         %u\n", desc[8]);
 }
 
+static void
+print_endpoint_desc(desc)
+	u_char *desc;
+{
+	printf("  bLength:          %u", desc[0]);
+	if (desc[0] != 7)
+		fputs(" (WRONG!)", stdout);
+	putchar('\n');
+	printf("  bDescriptorType:  0x%02X", desc[1]);
+	if (desc[1] != 0x05)
+		fputs(" (WRONG!)", stdout);
+	putchar('\n');
+	printf("  bEndpointAddress: 0x%02X\n", desc[2]);
+	printf("  bmAttributes:     0x%02X\n", desc[3]);
+	printf("  wMaxPacketSize:   %u\n", desc[4] | (desc[5] << 8));
+	printf("  bInterval:        %u\n", desc[6]);
+}
+
 main(argc, argv)
 	char **argv;
 {
@@ -91,6 +109,10 @@
 	print_config_desc(eeprom + 0x39A);
 	printf("USB interface descriptor at 0x39A3:\n");
 	print_interf_desc(eeprom + 0x3A3);
-	/* decoding of other descriptors remains to be implemented */
+	printf("USB endpoint descriptor at 0x39AC:\n");
+	print_endpoint_desc(eeprom + 0x3AC);
+	printf("USB endpoint descriptor at 0x39B3:\n");
+	print_endpoint_desc(eeprom + 0x3B3);
+	/* decoding of string descriptors remains to be implemented */
 	exit(0);
 }