Esempi in C++ (Cpp) per snd_opl4_read_memory

Esempio n. 1

int snd_yrw801_detect(struct snd_opl4 *opl4)
{
	char buf[15];

	snd_opl4_read_memory(opl4, buf, 0x001200, 15);
	if (memcmp(buf, "CopyrightYAMAHA", 15))
		return -ENODEV;
	snd_opl4_read_memory(opl4, buf, 0x1ffffe, 2);
	if (buf[0] != 0x01)
		return -ENODEV;
	snd_printdd("YRW801 ROM version %02x.%02x\n", buf[0], buf[1]);
	return 0;
}

Esempio n. 2

File: opl4_proc.c Progetto: Anjali05/linux

static ssize_t snd_opl4_mem_proc_read(struct snd_info_entry *entry,
				      void *file_private_data,
				      struct file *file, char __user *_buf,
				      size_t count, loff_t pos)
{
	struct snd_opl4 *opl4 = entry->private_data;
	char* buf;

	buf = vmalloc(count);
	if (!buf)
		return -ENOMEM;
	snd_opl4_read_memory(opl4, buf, pos, count);
	if (copy_to_user(_buf, buf, count)) {
		vfree(buf);
		return -EFAULT;
	}
	vfree(buf);
	return count;
}