[linux-dvb] Kernel locking in dst

Manu Abraham abraham.manu at gmail.com
Tue Oct 18 17:16:16 CEST 2005

Henrik Sjoberg wrote:

>I am playing a bit with getting MythTV to talk high level CI. However, I
>have come to a problem in the dst/dst_ca drivers. MythTV have different
>threads running for tuning frequency and doing ca-stuff. This makes me get
>simultaneous frontend and ca calls device. However, in the dst driver
>these two things both end up in i2c communiation with the card which
>interfere with each other.
>As you can understand this does not work good since there are no locking
>mechanism in dst. Is this something that is to go into the driver or
>something that should be done on a higher level (e.g. between all
>components in an dvb-adapter)? I guess it should be taken care of by the
>driver, since it is the only one that knows when locking is needed, but I
>just want to check.

Yes, you are right. can you check whether the following helps. ?


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