o_chip *chip,
unsigned offset);
void(*dbg_show)(struct seq_file *s,
struct gpio_chip *chip);
intbase;
u16ngpio;
unsignedcan_sleep:1;
unsignedexported:1;
};
再看具体的实例：
static struct s3c_gpio_chipgpio_4bit[] = {与上面第一个相对应
{
.base= S3C64XX_GPA_BASE,
.config= &gpio_4bit_cfg_eint0111,
.chip= {
.base= S3C64XX_GPA(0),
.ngpio= S3C64XX_GPIO_A_NR,
.label= "GPA",
},
}, {
.base= S3C64XX_GPB_BASE,
.config= &gpio_4bit_cfg_eint0111,
.chip= {
.base= S3C64XX_GPB(0),
.ngpio= S3C64XX_GPIO_B_NR,
.label= "GPB",
},
}, {
.base= S3C64XX_GPC_BASE,
.config= &gpio_4bit_cfg_eint0111,
.chip= {
.base= S3C64XX_GPC(0),
.ngpio= S3C64XX_GPIO_C_NR,
.label= "GPC",
},
}, {
.base= S3C64XX_GPD_BASE,
.config= &gpio_4bit_cfg_eint0111,
.chip= {
.base= S3C64XX_GPD(0),
.ngpio= S3C64XX_GPIO_D_NR,
.label= "GPD",
},
}, {
.base= S3C64XX_GPE_BASE,
.config= &gpio_4bit_cfg_noint,
.chip= {
.base= S3C64XX_GPE(0),
.ngpio= S3C64XX_GPIO_E_NR,
.label= "GPE",
},
}, {
.base= S3C64XX_GPG_BASE,
.config= &gpio_4bit_cfg_eint0111,
.chip= {
.base= S3C64XX_GPG(0),
.ngpio= S3C64XX_GPIO_G_NR,
.label= "GPG",
},
}, {
.base= S3C64XX_GPM_BASE,
.config= &gpio_4bit_cfg_eint0011,
.chip= {
.base= S3C64XX_GPM(0),
.ngpio= S3C64XX_GPIO_M_NR,
.label= "GPM",
},
},
};
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