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From: "Dmitry Torokhov" <dmitry.torokhov@gmail.com>
To: "Ahmed S. Darwish" <darwish.07@gmail.com>
Cc: "Bryan Wu" <bryan.wu@analog.com>,
	linux-input@atrey.karlin.mff.cuni.cz,
	linux-joystick@atrey.karlin.mff.cuni.cz,
	linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Subject: Re: [PATCH try #2] Input/Joystick Driver: add support AD7142 joystick driver
Date: Fri, 12 Oct 2007 13:29:31 -0400	[thread overview]
Message-ID: <d120d5000710121029q400d05d8s38ae8769f2f44b15@mail.gmail.com> (raw)
In-Reply-To: <20071012164131.GA12559@Ahmed>

Hi Ahmed,

On 10/12/07, Ahmed S. Darwish <darwish.07@gmail.com> wrote:
> On Fri, Oct 12, 2007 at 03:38:47PM +0800, Bryan Wu wrote:
> >
> > Signed-off-by: Bryan Wu <bryan.wu@analog.com>
> > ---
>
> Hi Bryan,
>
> Why creating module's own kthread to call ad7142_decode and process keycodes
> instead of using a tasklet ?
>

Yo can't access i2c from a tasklet context.

> Isn't disabling device interrupts from the begining of the ISR "ad7142_interrupt"
> till the kthread "ad7142_thread" got waked-up and scheduled a long time,
> espicially if there's a high load on the userspace side ?
>

It is OK - you disable a specific interrupt line preventing it from
raising any more IRQs until current one is serviced. This is different
from disabling interrupts on CPU.

> Minor issues below.
>
> > +
> > +/* R    ADC stage 0 - 11 result (uncompensated) actually located in SRAM */
> > +#define ADCRESULT_S0         0x0B
> > +#define ADCRESULT_S1         0x0C
> > +#define ADCRESULT_S2         0x0D
> > +#define ADCRESULT_S3         0x0E
> > +#define ADCRESULT_S4         0x0F
> > +#define ADCRESULT_S5         0x10
> > +#define ADCRESULT_S6         0x11
> > +#define ADCRESULT_S7         0x12
> > +#define ADCRESULT_S8         0x13
> > +#define ADCRESULT_S9         0x14
> > +#define ADCRESULT_S10                0x15
> > +#define ADCRESULT_S11                0x16
> > +
>
> Keeping last two lines aligned with their above counterparts ?

I believe they are aligned if you aplly the patch.

-- 
Dmitry

  reply	other threads:[~2007-10-12 17:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-12  7:38 Bryan Wu
2007-10-12  7:51 ` Andrey Panin
2007-10-12  9:14 ` Roel Kluin
2007-10-12 14:49 ` Dmitry Torokhov
2007-10-12 15:39   ` Bryan Wu
2007-10-12 15:50     ` Dmitry Torokhov
2007-10-12 15:59       ` Bryan Wu
2007-10-12 16:14         ` Dmitry Torokhov
2007-10-12 16:41 ` Ahmed S. Darwish
2007-10-12 17:29   ` Dmitry Torokhov [this message]
2007-10-12 19:21     ` Ahmed S. Darwish
2007-10-12 20:23       ` Dmitry Torokhov

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