I have found core.c, with
static void __init sun7i_init(void)
{
pr_info("%s: enter\n", __func__);
sw_pdev_init();
/* Register platform devices here!! */
}
Le mercredi 13 mai 2015 17:15:43 UTC+2, Guillaume Debray a écrit :
>
> I'm trying to modify the kernel of Android (4.2) with this instructions:
> http://kernel--tegra.android-source-browsing.googlecode.com/git-history/08f02f8bba6ec3613a3ca3d19e1a07f67739bdd4/drivers/staging/iio/imu/inv_mpu/README
>
> *The goal is to add the MPU6050 driver *to the kernel.
>
> All is done, except one thing:
>
>> For the Panda Board, the board file can be found at
>> arch/arm/mach-omap2/board-omap4panda.c.
>
>
> In my folder tree, I have
> arch/arm/mach-sun7i
> But there's no board-sun7i.c file (or equivalent).
>
> And I must to declare a secondary i2c adress for the new drivers work.
>
> How can I do? (I'm new in C)
>
> I have tried to modify device.c, with this following code:
>
> /* ACCELEROMETER */
> #include <linux/mpu.h>
>
> static int __init sun7i_i2c_init(void)
> {
> i2c_bus_type(4, 400,
> i2c_init_board,
> ARRAY_SIZE(i2c_init_board));
> }
>
>
> static struct mpu_platform_data gyro_platform_data = {
> .int_config = 0x00,
> .level_shifter = 0,
> .orientation = { -1, 0, 0,
> 0, 1, 0,
> 0, 0, -1 },
> .sec_slave_type = SECONDARY_SLAVE_TYPE_COMPASS,
> .sec_slave_id = COMPASS_ID_AK8963,
> .secondary_i2c_addr = 0x0E
> };
>
>
> static struct mpu_platform_data gyro_platform_data = {
> .int_config = 0x00,
> .level_shifter = 0,
> .orientation = { -1, 0, 0,
> 0, 1, 0,
> 0, 0, -1 },
> .sec_slave_type = SECONDARY_SLAVE_TYPE_COMPASS,
> .sec_slave_id = COMPASS_ID_AK8975,
> .secondary_i2c_addr = 0x0E
> };
>
>
> static struct mpu_platform_data gyro_platform_data = {
> .int_config = 0x00,
> .level_shifter = 0,
> .orientation = { -1, 0, 0,
> 0, 1, 0,
> 0, 0, -1 },
> .sec_slave_type = SECONDARY_SLAVE_TYPE_ACCEL,
> .sec_slave_id = ACCEL_ID_BMA250,
> .secondary_i2c_addr = 0x18,
> };
>
>
> static struct i2c_board_info __initdata i2c_init_board[] = {
> {
> I2C_BOARD_INFO("mpu3050", 0x68),
> .irq = (IH_GPIO_BASE + MPUIRQ_GPIO),
> .platform_data = &gyro_platform_data,
> },
> };
>
>
> static struct i2c_board_info __initdata i2c_init_board[] = {
> {
> I2C_BOARD_INFO("itg3500", 0x68),
> .irq = (IH_GPIO_BASE + MPUIRQ_GPIO),
> .platform_data = &gyro_platform_data,
> },
> };
> //for MPU6050
> static struct i2c_board_info __initdata i2c_init_board[] = {
> {
> I2C_BOARD_INFO("mpu6050", 0x68),
> .irq = (IH_GPIO_BASE + MPUIRQ_GPIO),
> .platform_data = &gyro_platform_data,
> },
> };
> //for MPU9150
> static struct i2c_board_info __initdata i2c_init_board[] = {
> {
> I2C_BOARD_INFO("mpu9150", 0x68),
> .irq = (IH_GPIO_BASE + MPUIRQ_GPIO),
> .platform_data = &gyro_platform_data,
> },
> };
>
>
> /* END ACCELEROMETERS */
>
> The problem is, that *i2c_init_board* is not define, I have looked in
> i2c.h
>
> So, is it a good idea to try to modify device.c, or the modification must
> done in another file ? which one ?
>
> Thanks
>
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