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Diffstat (limited to 'sys/dev/usb/uhcireg.h')
-rw-r--r--sys/dev/usb/uhcireg.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/dev/usb/uhcireg.h b/sys/dev/usb/uhcireg.h
index ab3c9e7..c8c5479 100644
--- a/sys/dev/usb/uhcireg.h
+++ b/sys/dev/usb/uhcireg.h
@@ -1,4 +1,4 @@
-/* $NetBSD: usb/uhcireg.h,v 1.12 2000/07/23 19:43:38 augustss Exp $ */
+/* $NetBSD: usb/uhcireg.h,v 1.13 2000/08/13 18:20:15 augustss Exp $ */
/* $FreeBSD$ */
/*
@@ -121,6 +121,12 @@ typedef u_int32_t uhci_physaddr_t;
#define UHCI_PTR_QH 0x00000002
#define UHCI_PTR_VF 0x00000004
+/*
+ * Wait this long after a QH has been removed. This gives that HC a
+ * chance to stop looking at it before it's recycled.
+ */
+#define UHCI_QH_REMOVE_DELAY 5
+
/*
* The Queue Heads and Transfer Descriptors are accessed
* by both the CPU and the USB controller which run
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