rts5139 polling overhead...

From: Daniel J Blueman
Date: Mon Aug 06 2012 - 10:31:04 EST


Hi Edwin,

The Realsil/Realtek rts5139 card reader driver polls it's hardware at
20Hz and has racked up 25 minutes of processor time over a few days on
this Sandy Bridge media centre box, without any cards inserted. This
is more than the sum of all the other processes (including X):

$ ps -ef | grep rts5139
root 691 2 0 Aug03 ? 00:00:36 [rts5139-control]
root 693 2 0 Aug03 ? 00:25:36 [rts5139-polling]

The kernel is stock 3.5.0 without debug; would it help if I log a bug
report or eg collect further detail?

Thanks,
Daniel
--
Daniel J Blueman
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