Linux Input/HID development
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From: "Alain Hervo" <alain.hervo@prescom.fr>
To: linux-input@vger.kernel.org
Subject: C-Media CM119A GPIO  not reachables with Cm109 driver
Date: Wed, 11 Apr 2012 09:44:53 +0200	[thread overview]
Message-ID: <E43D2A9C21DA4D7D97DBF878376FD3A0@AHXP> (raw)

Good morning.
I use the interesting  Alfred E.Heggestad 's driver for driving C-Media 
cm109 usb audio component. 
http://linux.derkeiler.com/Mailing-Lists/Kernel/2008-02/msg03332.html
This driver is useful for accessing GPIO  event.

Now C-Media  CM109 component is replaced by CM119A.
CM119A 's documentation don't  provide difference between CM119A and CM109 
components, except the binterval time : 2ms for CM119A , 32ms for CM109. .

But,  when cm109_usb_probe() is processed,  usb_endpoint_is_int_in(endpoint) 
fails with CM119A component.  : component seems not have accessible 
interrupt endpoint.

Please, do you know this problem ?
Thank you.
Best regards.
Alain.

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Alain HERVO

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                 reply	other threads:[~2012-04-11  7:44 UTC|newest]

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