in drivers/misc/sfp/amzn-sfp.c [306:313]
static ssize_t amzn_sfp_read(struct file *fp, struct kobject *kobj,
struct bin_attribute *ba, char *buf, loff_t ofs, size_t len)
{
ssize_t result;
result = amzn_sfp_rw(ba, buf, ofs, len, I2C_M_RD);
return result;
}