* [PATCH v3 0/2] usb: override hub device bInterval with device
@ 2019-11-22 4:24 Ikjoon Jang
0 siblings, 0 replies; only message in thread
From: Ikjoon Jang @ 2019-11-22 4:24 UTC (permalink / raw)
To: linux-usb
Cc: GregKroah-Hartman, RobHerring, MarkRutland, AlanStern, SuwanKim,
GustavoA . R . Silva, IkjoonJang, JohanHovold, devicetree,
linux-kernel, drinkcat
This patchset enables hard wired hub device to use different bInterval
from its descriptor when the hub has a combined device node.
When we know reducing autosuspend delay for built-in HIDs is better for
power saving, we can reduce it to the optimal value. But if a parent hub
has a long bInterval, mouse lags a lot from more frequent autosuspend.
So this enables overriding bInterval for a hard wired hub device only
when we know that reduces the power consumption.
Ikjoon Jang (2):
dt-bindings: usb: add "hub,interval" property
usb: overridable hub bInterval by device node
Documentation/devicetree/bindings/usb/usb-device.txt | 4 ++++
drivers/usb/core/config.c | 6 ++++++
2 files changed, 10 insertions(+)
--
2.24.0.432.g9d3f5f5b63-goog
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