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authorAlan Stern <stern@rowland.harvard.edu>2006-05-12 19:35:45 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-22 02:04:11 +0400
commit84afddd7ac58adad00cb0e50d0af25fcf825668b (patch)
treeb528f0169ae61309ea4a0020bd53504f8faa827e /drivers/usb/host/uhci-debug.c
parent04538a255ac8b404c20cbf15867c9829254c470f (diff)
downloadlinux-84afddd7ac58adad00cb0e50d0af25fcf825668b.tar.xz
[PATCH] UHCI: Reimplement FSBR
This patch (as683) re-implements Full-Speed Bandwidth Reclamation (FSBR) properly. It keeps track of which endpoint queues have advanced, and when none have advanced for a sufficiently long time, FSBR is turned off. The next TD on each of the non-moving queues is modified to generate an interrupt on completion, so that FSBR can be re-enabled as soon as the hardware starts to make some progress. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-debug.c')
-rw-r--r--drivers/usb/host/uhci-debug.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index 6bbd33db9358..081c592fe8b1 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -274,7 +274,8 @@ static int uhci_show_root_hub_state(struct uhci_hcd *uhci, char *buf, int len)
default:
rh_state = "?"; break;
}
- out += sprintf(out, "Root-hub state: %s\n", rh_state);
+ out += sprintf(out, "Root-hub state: %s FSBR: %d\n",
+ rh_state, uhci->fsbr_is_on);
return out - buf;
}