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From: "Bjørn Mork" <bjorn@mork.no>
To: Antti Palosaari <crope@iki.fi>
Cc: Steve Kerrison <steve@stevekerrison.com>, linux-media@vger.kernel.org
Subject: Re: [bug-report] unconditionally calling cxd2820r_get_tuner_i2c_adapter() from em28xx-dvb.c creates a hard module dependency
Date: Fri, 03 Jun 2011 14:50:25 +0200	[thread overview]
Message-ID: <87hb87xeni.fsf@nemi.mork.no> (raw)
In-Reply-To: <4DE8D1E6.4000300@iki.fi> (Antti Palosaari's message of "Fri, 03 Jun 2011 15:21:58 +0300")

Antti Palosaari <crope@iki.fi> writes:

> There is some other FEs having also I2C adapter, I wonder how those
> handle this situation. I looked example from cx24123 and s5h1420
> drivers, both used by flexcop.
>
> Did you see what is magic used those devices?

None.  They have the same problem, creating hard module dependencies
even if they use dvb_attach() and CONFIG_MEDIA_ATTACH is set:

bjorn@canardo:~$ modinfo b2c2-flexcop
filename:       /lib/modules/2.6.32-5-amd64/kernel/drivers/media/dvb/b2c2/b2c2-flexcop.ko
license:        GPL
description:    B2C2 FlexcopII/II(b)/III digital TV receiver chip
author:         Patrick Boettcher <patrick.boettcher@desy.de
depends:        s5h1420,dvb-core,cx24113,cx24123,i2c-core
vermagic:       2.6.32-5-amd64 SMP mod_unload modversions 
parm:           debug:set debug level (1=info,2=tuner,4=i2c,8=ts,16=sram,32=reg (|-able)). (debugging is not enabled) (int)
parm:           adapter_nr:DVB adapter numbers (array of short)



This probably means that a generic i2c_tuner wrapper, similar to
dvb_attach, would be useful.



Bjørn

  reply	other threads:[~2011-06-03 12:50 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-01  9:45 [bug-report] unconditionally calling cxd2820r_get_tuner_i2c_adapter() from em28xx-dvb.c creates a hard module dependency Bjørn Mork
2011-06-01  9:49 ` Antti Palosaari
2011-06-01 10:31   ` Bjørn Mork
2011-06-01 10:53   ` Bjørn Mork
2011-06-01 17:18     ` Bjørn Mork
2011-06-03 12:21       ` Antti Palosaari
2011-06-03 12:50         ` Bjørn Mork [this message]
2011-06-03 12:59           ` Antti Palosaari
2011-06-03 13:20             ` Bjørn Mork

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