C++ (Cpp) dvb_usbv2_generic_rw 예제들

예제 #1

파일: mxl111sf.c 프로젝트: AICP/kernel_moto_shamu

int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
{
	int wo = (rbuf == NULL || rlen == 0); /* write-only */
	int ret;
	u8 sndbuf[MAX_XFER_SIZE];

	if (1 + wlen > sizeof(sndbuf)) {
		pr_warn("%s: len=%d is too big!\n", __func__, wlen);
		return -EOPNOTSUPP;
	}

	deb_adv("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen);

	memset(sndbuf, 0, 1+wlen);

	sndbuf[0] = cmd;
	memcpy(&sndbuf[1], wbuf, wlen);

	ret = (wo) ? dvb_usbv2_generic_write(d, sndbuf, 1+wlen) :
		dvb_usbv2_generic_rw(d, sndbuf, 1+wlen, rbuf, rlen);
	mxl_fail(ret);

	return ret;
}

예제 #2

파일: mxl111sf.c 프로젝트: AlexShiLucky/linux

int mxl111sf_ctrl_msg(struct mxl111sf_state *state,
		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
{
	struct dvb_usb_device *d = state->d;
	int wo = (rbuf == NULL || rlen == 0); /* write-only */
	int ret;

	if (1 + wlen > MXL_MAX_XFER_SIZE) {
		pr_warn("%s: len=%d is too big!\n", __func__, wlen);
		return -EOPNOTSUPP;
	}

	pr_debug("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen);

	mutex_lock(&state->msg_lock);
	memset(state->sndbuf, 0, 1+wlen);
	memset(state->rcvbuf, 0, rlen);

	state->sndbuf[0] = cmd;
	memcpy(&state->sndbuf[1], wbuf, wlen);

	ret = (wo) ? dvb_usbv2_generic_write(d, state->sndbuf, 1+wlen) :
		dvb_usbv2_generic_rw(d, state->sndbuf, 1+wlen, state->rcvbuf,
				     rlen);

	if (rbuf)
		memcpy(rbuf, state->rcvbuf, rlen);

	mutex_unlock(&state->msg_lock);

	mxl_fail(ret);

	return ret;
}

예제 #3

파일: mxl111sf.c 프로젝트: AD5GB/kernel_n5_3.10-experimental

int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
{
	int wo = (rbuf == NULL || rlen == 0); /* write-only */
	int ret;
	u8 sndbuf[1+wlen];

	deb_adv("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen);

	memset(sndbuf, 0, 1+wlen);

	sndbuf[0] = cmd;
	memcpy(&sndbuf[1], wbuf, wlen);

	ret = (wo) ? dvb_usbv2_generic_write(d, sndbuf, 1+wlen) :
		dvb_usbv2_generic_rw(d, sndbuf, 1+wlen, rbuf, rlen);
	mxl_fail(ret);

	return ret;
}

예제 #4

파일: dvb_usb_urb.c 프로젝트: AdrianHuang/linux-3.8.13

int dvb_usbv2_generic_write(struct dvb_usb_device *d, u8 *buf, u16 len)
{
	return dvb_usbv2_generic_rw(d, buf, len, NULL, 0);
}