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-rw-r--r--pcap/usb.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/pcap/usb.h b/pcap/usb.h
index e485ec85d024..48dc9064c5b6 100644
--- a/pcap/usb.h
+++ b/pcap/usb.h
@@ -126,6 +126,12 @@ typedef struct _usb_header_mmapped {
} pcap_usb_header_mmapped;
/*
+ * Maximum number of descriptors supported.
+ * It's currently 128 in the Linux binary USB monitoring code.
+ */
+#define USB_MAXDESC 128
+
+/*
* Isochronous descriptors; for isochronous transfers there might be
* one or more of these at the beginning of the packet data. The
* number of descriptors is given by the "ndesc" field in the header;