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twsi: use tsleep instead of pause for better responsiveness
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Authored by avg on Sep 3 2020, 8:29 AM.

Details

Summary

wakeup() does not have any effect on pause(), so if a transfer was
not finished by the time of the first check, then the thread
would sleep full 30 ms.

To do: protect the transfer and interrupt code with the mutex,
switch from tsleep from msleep

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rS FreeBSD src repository
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