i.MX ProcessorsのトピックRe: Is there an example program for i2c write?

Is there an example program for i2c write?

ohseohwan — Thu, 19 Oct 2017 06:43:35 GMT

I need to setup the i2c by connecting the camera to the parallel port.
I need to set the camera through i2c writing, but i want to know how to set i2c in i.mx6 saber borad.

example code

int main(int argc, char *argv[])
{
    int i, j, dev;
    char buf[8];
    if ((dev = open("/dev/i2c-0", O_RDWR)) < 0) {
        perror("open failed");
        exit(1);
    }

    if (ioctl(dev, I2C_SLAVE, SLAVE_ADDR) < 0) {
        perror("ioctl failed");
        close(dev);
        exit(1);
    }

//---------------------

i2c write

write(dev,buf,1) ????????

//---------------------

}

Re: Is there an example program for i2c write?

igorpadykov — Thu, 19 Oct 2017 08:20:27 GMT

Hi OH

for such example one can look at ov5640 driver example described in

Chapter 19 OmniVision Camera Driver attached Linux Manual and

sect.19.1.3 Source Code Structure

Best regards
igor
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