linux-kernel - Re: I2C_PARPORT_LIGHT dependence problem

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Date:	Sun, 20 Jan 2008 11:11:51 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	Adam Turk <bofh1234@...mail.com>
Cc:	<linux-kernel@...r.kernel.org>, <i2c@...sensors.org>
Subject: Re: I2C_PARPORT_LIGHT dependence problem

Hi Adam,

On Sat, 19 Jan 2008 13:37:05 -0500, Adam Turk wrote:
> I am updating an old config to run on 2.6.23.14 and noticed I am
> still prompted for I2C_PARPORT_LIGHT even though I don't have
> the parallel port driver enabled.  Shouldn't I2C_PARPORT_LIGHT
> depend on the parallel port being selected? (...)
> 
> Symbol: I2C_PARPORT_LIGHT [=n]
>   │ Prompt: Parallel port adapter (light)
>   │   Defined at drivers/i2c/busses/Kconfig:348
>   │   Depends on: I2C
>   │   Location:
>   │     -> Device Drivers
>   │       -> I2C support (I2C [=m])
>   │         -> I2C Hardware Bus support
>   │   Selects: I2C_ALGOBIT

The help text says:

"This driver is a light version of i2c-parport.  It doesn't depend on
the parport driver, and uses direct I/O access instead."

So I think that the (lack of) dependencies is correct. We don't want to
force the user to select PARPORT (and built the parport driver) to get
access to the i2c-parport-light driver which does NOT need this parport
driver.

-- 
Jean Delvare
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