diff options
| author | Sebastian Andrzej Siewior <[email protected]> | 2012-12-18 15:25:46 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2013-01-11 16:16:01 -0800 |
| commit | 8d8479db3dde3ef7a9bc803e565842764fa21a53 (patch) | |
| tree | 6c4e2b049c675b62be0fd3d65ae606f367dfb56c /tools/perf/scripts/python/bin | |
| parent | ece1d77ed73b335319725f1d5ffa72ca3fa9b05c (diff) | |
usb/core: consider link speed while looking at bMaxPower
The USB 2.0 specification says that bMaxPower is the maximum power
consumption expressed in 2 mA units and the USB 3.0 specification says
that it is expressed in 8 mA units.
This patch adds a helper function usb_get_max_power() which computes the
value based on config & usb_device's speed value. The the device descriptor
dump computes the value on its own.
Cc: Sarah Sharp <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Acked-by: Alan Stern <[email protected]>
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions