GPIO_VIRTUSER_NAME_BUF_LEN
if (strlen(name) > (GPIO_VIRTUSER_NAME_BUF_LEN - 1))
char consumer[GPIO_VIRTUSER_NAME_BUF_LEN];
char buf[GPIO_VIRTUSER_NAME_BUF_LEN + 1];
char buf[GPIO_VIRTUSER_NAME_BUF_LEN + 2];
ret = simple_write_to_buffer(buf, GPIO_VIRTUSER_NAME_BUF_LEN, ppos,