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| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-09-13 16:41:12 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-09-20 12:33:49 -0700 |
| commit | 170c026347c867a71e27713b98c58b266146c468 (patch) | |
| tree | de0b8e1855b93ecae7d6d6dfe3138c6228b5fb54 /drivers/usb/host/xhci.h | |
| parent | 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc (diff) | |
| download | linux-170c026347c867a71e27713b98c58b266146c468.tar.bz2 | |
xhci: Fix mult base in endpoint bandwidth info.
The "Mult" bits in the SuperSpeed Endpoint Companion Descriptor are
zero-based, and the xHCI host controller wants them to be zero-based in
the input context. However, for the bandwidth math, we want them to be
one-based. Fix this.
Fix the documentation about the endpoint bandwidth mult variable in the
xhci.h file, which says it is zero-based. Also fix the documentation
about num_packets, which is also one-based, not zero-based.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 13f1c23ed19d..752a500f8695 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -747,8 +747,9 @@ struct xhci_stream_info { * (DMI) also limits the total bandwidth (across all domains) that can be used. */ struct xhci_bw_info { + /* ep_interval is zero-based */ unsigned int ep_interval; - /* mult and num_packets are zero-based */ + /* mult and num_packets are one-based */ unsigned int mult; unsigned int num_packets; unsigned int max_packet_size; |