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Commit 810fda9b authored by tvboxspy's avatar tvboxspy Committed by Mauro Carvalho Chehab
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[media] [2/2,ver,1.90] DM04/QQBOX Reduce USB buffer size 



Reduced unused buffer size to 64.

Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 95c21c41

drivers/media/dvb/dvb-usb/lmedm04.c

+8 −8
Original line number Diff line number Diff line
@@ -162,7 +162,7 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, 
	int ret = 0;



	if (st->usb_buffer == NULL) {

		st->usb_buffer = kmalloc(512, GFP_KERNEL);

		st->usb_buffer = kmalloc(64, GFP_KERNEL);

		if (st->usb_buffer == NULL) {

			info("MEM Error no memory");

			return -ENOMEM;
@@ -175,8 +175,8 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, 
	if (ret < 0)

		return -EAGAIN;



	/* the read/write capped at 512 */

	memcpy(buff, wbuf, (wlen > 512) ? 512 : wlen);

	/* the read/write capped at 64 */

	memcpy(buff, wbuf, (wlen < 64) ? wlen : 64);



	ret |= usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, 0x01));
@@ -186,8 +186,8 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, 


	ret |= usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x01));



	ret |= lme2510_bulk_read(d->udev, buff, (rlen > 512) ?

			512 : rlen , 0x01);

	ret |= lme2510_bulk_read(d->udev, buff, (rlen < 64) ?

			rlen : 64 , 0x01);



	if (rlen > 0)

		memcpy(rbuf, buff, rlen);
@@ -580,7 +580,7 @@ static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 
{

	struct dvb_usb_device *d = i2c_get_adapdata(adap);

	struct lme2510_state *st = d->priv;

	static u8 obuf[64], ibuf[512];

	static u8 obuf[64], ibuf[64];

	int i, read, read_o;

	u16 len;

	u8 gate = st->i2c_gate;
@@ -621,7 +621,7 @@ static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 
			len = msg[i].len+3;

		}



		if (lme2510_msg(d, obuf, len, ibuf, 512) < 0) {

		if (lme2510_msg(d, obuf, len, ibuf, 64) < 0) {

			deb_info(1, "i2c transfer failed.");

			return -EAGAIN;

		}
@@ -1312,5 +1312,5 @@ module_exit(lme2510_module_exit); 


MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");

MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0");

MODULE_VERSION("1.89");

MODULE_VERSION("1.90");

MODULE_LICENSE("GPL");