From: Ge Gao <ggao@invensense.com>
To: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org
Subject: sw_ring.c poll problem
Date: Tue, 15 May 2012 18:26:54 -0700 [thread overview]
Message-ID: <6e6a0f27b1900226df5350cc320f25bb@mail.gmail.com> (raw)
Dear all,
I found that ring_sw.c the poll function has to read half of the
data for poll to work. Basically, you have to fill half of the ring buffer
in order for poll to be triggrerred. You have to also read more than half
of the data for poll to be disappeared. This would pose problems. If you
have big ring buffer, the data will lost its immediacy. If you have small
ring buffer, the data could lost if not buffered enough. Is that possible
this poll action configurable? Or I missed anything.
Thanks.
Best regards,
Ge GAO
next reply other threads:[~2012-05-16 1:26 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-16 1:26 Ge Gao [this message]
2012-05-16 5:46 ` sw_ring.c poll problem Jonathan Cameron
2012-05-16 7:15 ` Jonathan Cameron
2012-05-16 17:16 ` Ge Gao
2012-05-18 1:08 ` Ge Gao
2012-05-18 17:30 ` Jonathan Cameron
2012-05-18 18:26 ` Ge Gao
2012-05-19 9:16 ` Jonathan Cameron
2012-05-19 9:41 ` Lars-Peter Clausen
2012-05-19 9:50 ` Jonathan Cameron
2012-05-19 10:43 ` Lars-Peter Clausen
2012-05-19 14:12 ` Jonathan Cameron
2012-05-19 14:21 ` Jonathan Cameron
2012-05-21 17:03 ` Ge Gao
2012-05-18 19:27 ` Ge Gao
2012-05-19 9:18 ` Jonathan Cameron
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