From: "stéphane cerveau" <scerveau@gmail.com>
To: alsa-devel@alsa-project.org
Subject: IMX WM8740 I2S support
Date: Wed, 25 Sep 2013 15:08:02 +0200 [thread overview]
Message-ID: <5242E032.3060706@gmail.com> (raw)
Dear all,
I'm currently working on supporting WM8740 device software configured
with imx6q system.
For now my driver seems to be configured correctly. The playback is
launched but i get:
ALSA sound/core/pcm_lib.c:1822 playback write error (DMA or IRQ trouble?
write error: Input/output error
The imx ssi is not sending me any data on I2S bus( nothing can be seen
on the oscillo).
I would like to know how do I have to configure my master clock in order
to launch the I2S. My master clock is for now 24MHz.
Sorry to be confused a bit but i'm quite newbie with this device.
Best regards.
Stéphane
next reply other threads:[~2013-09-25 13:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-25 13:08 stéphane cerveau [this message]
2013-09-25 13:12 ` IMX WM8740 I2S support Fabio Estevam
2013-09-25 13:54 ` stéphane cerveau
2013-09-25 13:56 ` stéphane cerveau
2013-09-25 16:37 ` Fabio Estevam
2013-09-25 16:42 ` stéphane cerveau
2013-09-25 16:53 ` Fabio Estevam
2013-09-25 16:58 ` stéphane cerveau
2013-09-25 17:02 ` Fabio Estevam
[not found] ` <524317D4.7020701@gmail.com>
2013-09-25 17:07 ` Fabio Estevam
2013-09-25 17:09 ` stéphane cerveau
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