kexts: ahci: implement read support for ATA devices

kexts/drivers/block/ahci/atapi.c

@@ -0,0 +1,22 @@
+#include <socks/device.h>
+
+kern_status_t atapi_read_blocks(struct device *dev, sectors_t offset, size_t *count, struct iovec *vec, size_t nvec, socks_flags_t flags)
+{
+	return KERN_UNSUPPORTED;
+}
+
+kern_status_t atapi_write_blocks(struct device *dev, sectors_t offset, size_t *count, struct iovec *vec, size_t nvec, socks_flags_t flags)
+{
+	return KERN_UNSUPPORTED;
+}
+
+kern_status_t atapi_ioctl(struct device *dev, unsigned int req, void *argp)
+{
+	return KERN_UNSUPPORTED;
+}
+
+struct block_device_ops atapi_device_ops = {
+	.read_blocks = atapi_read_blocks,
+	.write_blocks = atapi_write_blocks,
+	.ioctl = atapi_ioctl,
+};