C++ (Cpp) gaudio_open_snd_dev示例

示例#1

文件： u_audio.c 项目： 325116067/semc-qsd8x50

/**
 * gaudio_setup - setup ALSA interface and preparing for USB transfer
 *
 * This sets up PCM, mixer or MIDI ALSA devices fore USB gadget using.
 *
 * Returns negative errno, or zero on success
 */
int __init gaudio_setup(struct gaudio *card)
{
	int	ret;

	ret = gaudio_open_snd_dev(card);
	if (ret)
		ERROR(card, "we need at least one control device\n");

	return ret;

}

示例#2

文件： u_uac1.c 项目： Leoyzen/Charm-Eye

int gaudio_setup(struct gaudio *card)
{
	int	ret;

	ret = gaudio_open_snd_dev(card);
	if (ret)
		pr_err("Failed to open snd devices\n");
	else if (!the_card)
		the_card = card;

	return ret;
}