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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-05-12 19:35:45 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-22 02:04:11 +0400 |
| commit | 84afddd7ac58adad00cb0e50d0af25fcf825668b (patch) | |
| tree | b528f0169ae61309ea4a0020bd53504f8faa827e /drivers/usb/host/uhci-debug.c | |
| parent | 04538a255ac8b404c20cbf15867c9829254c470f (diff) | |
| download | linux-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.c | 3 |
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; } |