https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252434
Bug ID: 252434
Summary: for USB audio headset, need do set interface
dynamiclly for power save and correct status of
headsets
Product: Base System
Version: Unspecified
Hardware: Any
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: usb
Assignee: u...@freebsd.org
Reporter: shichun...@dell.com
Created attachment 221286
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=221286=edit
patch to add set interface dynamicly.
1. set interface 0 and alt number when headset stop/start working is quite
standard on windows/Linux OS
2. set interface 0 when not headset doesn't work can help power save;
3. some Epos headset tool check will check the headset status by polling it's
current alt interface, and "0" set interface alt stands that headset is idle,
so EPOS application do can do firmware update for this device.
Base above comment, it's good deal to add this patch.
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