[media] af9035: implement I2C adapter read operation

			memcpy(&buf[5], msg[0].buf, msg[0].len);

			ret = af9035_ctrl_msg(d, &req);

		}

	} else if (num == 1 && (msg[0].flags & I2C_M_RD)) {

		if (msg[0].len > 40) {

			/* TODO: correct limits > 40 */

			ret = -EOPNOTSUPP;

		} else {

			/* I2C */

			u8 buf[5];

			struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),

					buf, msg[0].len, msg[0].buf };

			req.mbox |= ((msg[0].addr & 0x80)  >>  3);

			buf[0] = msg[0].len;

			buf[1] = msg[0].addr << 1;

			buf[2] = 0x00; /* reg addr len */

			buf[3] = 0x00; /* reg addr MSB */

			buf[4] = 0x00; /* reg addr LSB */

			ret = af9035_ctrl_msg(d, &req);

		}

	} else {

		/*

		 * We support only two kind of I2C transactions:

		 * 1) 1 x read + 1 x write

		 * We support only three kind of I2C transactions:

		 * 1) 1 x read + 1 x write (repeated start)

		 * 2) 1 x write

		 * 3) 1 x read

		 */

		ret = -EOPNOTSUPP;

	}