From: Jebediah Huang <jebediah.huang@gmail.com>
To: Eric Miao <eric.y.miao@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org
Subject: Re: Using PXA arm board with MAX7319 GPIO expander input
Date: Mon, 8 Feb 2010 19:08:06 +0800 [thread overview]
Message-ID: <bf0eec9a1002080308v77c9c026j302767e41cd660f2@mail.gmail.com> (raw)
In-Reply-To: <bf0eec9a1002072302w1e81cc6bkd994c3efaab4d51d@mail.gmail.com>
On Mon, Feb 8, 2010 at 3:02 PM, Jebediah Huang <jebediah.huang@gmail.com> wrote:
>
> # ./i2ctest 2 button pressed
> fd=3
> t=0
> t=512
> 0x7f,0x80,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7
> f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x
> 0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x
> 7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0
> x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0
> x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,
> 0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,
> 0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f
> ,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0
> ,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7
> f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x
> 0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x
> 7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0
> x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0
> x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,0x7f,0x0,
>
> I think problem is my setup max732x failure.
>
Is it correct that max732x driver will take i2c configuration from my
setup info and make each max7319 input signel into a gpio?
Hardware work correctly because without max732x driver, above i2c-dev
code can read max7319 input signel. Configuration is correct.
gpio_base is starting where max732x driver will add new gpio number
for max7319 signel.
static struct max732x_platform_data max7319_data[] = {
[0] = {
.gpio_base = NR_BUILTIN_GPIO,
},
};
static struct i2c_board_info i2c_board_info[] =
{
{
.type = "max7319",
.addr = 0x6C,
.irq = IRQ_GPIO(125), <= this is my irq pin
for max7319 INT_N
.platform_data = &max7319_data[0],
},
};
static unsigned long peony_pin_config[] __initdata = {
/* i2c bus */
GPIO105_CI2C_SDA,
GPIO106_CI2C_SCL,
} <= this correct because i2c-dev can work.
Is my understanding wrong?
next prev parent reply other threads:[~2010-02-08 11:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-08 5:44 Using PXA arm board with MAX7319 GPIO expander input Jebediah Huang
2010-02-08 6:02 ` Eric Miao
2010-02-08 7:02 ` Jebediah Huang
2010-02-08 7:36 ` Daniel Mack
2010-02-08 7:56 ` Jebediah Huang
2010-02-08 11:08 ` Jebediah Huang [this message]
2010-02-08 11:33 ` Daniel Mack
2010-02-08 12:32 ` Marc Zyngier
2010-02-08 13:04 ` Daniel Mack
2010-02-09 1:05 ` Eric Miao
2010-02-09 7:39 ` Marc Zyngier
2010-02-09 8:19 ` Eric Miao
2010-02-09 10:22 ` Marc Zyngier
2010-02-09 1:07 ` Eric Miao
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