I got a USB 3 device recently, and was unimpressed by the output from
lsusb -v. The below patch decodes the SuperSpeed Endpoint Companion
Descriptor; it's against today's usbutils CVS tree.
Index: lsusb.c
===================================================================
RCS file: /cvsroot/linux-usb/usbutils/lsusb.c,v
retrieving revision 1.35
diff -u -r1.35 lsusb.c
--- lsusb.c 5 Jun 2008 06:57:48 -0000 1.35
+++ lsusb.c 19 Apr 2010 01:49:39 -0000
@@ -79,6 +79,10 @@
#define USB_DT_CS_INTERFACE 0x24
#define USB_DT_CS_ENDPOINT 0x25
+#ifndef USB_DT_SS_ENDPOINT_COMP
+#define USB_DT_SS_ENDPOINT_COMP 0x30
+#endif
+
#ifndef USB_CLASS_VIDEO
#define USB_CLASS_VIDEO 0x0e
#endif
@@ -631,6 +635,9 @@
case USB_DT_INTERFACE_ASSOCIATION:
dump_association(dev, buf);
break;
+ case USB_DT_SS_ENDPOINT_COMP:
+ printf(" bMaxBurst %15u\n", buf[2] + 1);
+ break;
default:
/* often a misplaced class descriptor */
printf(" ** UNRECOGNIZED: ");
--
Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
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