lx_buffer_ask
err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed,
err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array);
err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array);
int lx_buffer_ask(struct lx6464es *chip, u32 pipe, int is_capture,