Does not work for back to back reads or writes

[RussellGallop]

while(1) {
i2c_data.data_len = 1;
if (i2c_master_rx(0x2, 0x1, i2c_data, i2c_master) != 1) {
printf("Failed");
} else {
printf("Succeeded");
}
// wait for 1 second
}

Only works every 4 attempts.

[djpwilk]

Note that this issue pertains only to the module_i2c, not to the other i2c components (e.g. i2c_simple, i2c_singleport