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Commit fe86ec75 authored by Jean-François Moine's avatar Jean-François Moine Committed by Mauro Carvalho Chehab
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[media] gspca - sn9c20x: Propagate USB errors to higher level 

Signed-off-by: default avatarJean-François Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c5224d81
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Inline Side-by-side
Showing with 171 additions and 152 deletions
drivers/media/video/gspca/sn9c20x.c
View file @ fe86ec75
......@@ -1061,10 +1061,13 @@ static struct i2c_reg_u8 hv7131r_init[] = {
{0x23, 0x09}, {0x01, 0x08},
};
static int reg_r(struct gspca_dev *gspca_dev, u16 reg, u16 length)
static void reg_r(struct gspca_dev *gspca_dev, u16 reg, u16 length)
{
struct usb_device *dev = gspca_dev->dev;
int result;
if (gspca_dev->usb_err < 0)
return;
result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
0x00,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
......@@ -1074,17 +1077,19 @@ static int reg_r(struct gspca_dev *gspca_dev, u16 reg, u16 length)
length,
500);
if (unlikely(result < 0 || result != length)) {
pr_err("Read register failed 0x%02X\n", reg);
return -EIO;
pr_err("Read register %02x failed %d\n", reg, result);
gspca_dev->usb_err = result;
}
return 0;
}
static int reg_w(struct gspca_dev *gspca_dev, u16 reg,
static void reg_w(struct gspca_dev *gspca_dev, u16 reg,
const u8 *buffer, int length)
{
struct usb_device *dev = gspca_dev->dev;
int result;
if (gspca_dev->usb_err < 0)
return;
memcpy(gspca_dev->usb_buf, buffer, length);
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x08,
......@@ -1095,35 +1100,39 @@ static int reg_w(struct gspca_dev *gspca_dev, u16 reg,
length,
500);
if (unlikely(result < 0 || result != length)) {
pr_err("Write register failed index 0x%02X\n", reg);
return -EIO;
pr_err("Write register %02x failed %d\n", reg, result);
gspca_dev->usb_err = result;
}
return 0;
}
static int reg_w1(struct gspca_dev *gspca_dev, u16 reg, const u8 value)
static void reg_w1(struct gspca_dev *gspca_dev, u16 reg, const u8 value)
{
u8 data[1] = {value};
return reg_w(gspca_dev, reg, data, 1);
reg_w(gspca_dev, reg, data, 1);
}
static int i2c_w(struct gspca_dev *gspca_dev, const u8 *buffer)
static void i2c_w(struct gspca_dev *gspca_dev, const u8 *buffer)
{
int i;
reg_w(gspca_dev, 0x10c0, buffer, 8);
for (i = 0; i < 5; i++) {
reg_r(gspca_dev, 0x10c0, 1);
if (gspca_dev->usb_err < 0)
return;
if (gspca_dev->usb_buf[0] & 0x04) {
if (gspca_dev->usb_buf[0] & 0x08)
return -EIO;
return 0;
if (gspca_dev->usb_buf[0] & 0x08) {
pr_err("i2c_w error\n");
gspca_dev->usb_err = -EIO;
}
return;
}
msleep(1);
}
return -EIO;
pr_err("i2c_w reg %02x no response\n", buffer[2]);
/* gspca_dev->usb_err = -EIO; fixme: may occur */
}
static int i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
{
struct sd *sd = (struct sd *) gspca_dev;
......@@ -1142,10 +1151,10 @@ static int i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
row[6] = 0x00;
row[7] = 0x10;
return i2c_w(gspca_dev, row);
i2c_w(gspca_dev, row);
}
static int i2c_w2(struct gspca_dev *gspca_dev, u8 reg, u16 val)
static void i2c_w2(struct gspca_dev *gspca_dev, u8 reg, u16 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 row[8];
......@@ -1163,10 +1172,10 @@ static int i2c_w2(struct gspca_dev *gspca_dev, u8 reg, u16 val)
row[6] = 0x00;
row[7] = 0x10;
return i2c_w(gspca_dev, row);
i2c_w(gspca_dev, row);
}
static int i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val)
static void i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 row[8];
......@@ -1179,19 +1188,15 @@ static int i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val)
row[5] = 0;
row[6] = 0;
row[7] = 0x10;
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
i2c_w(gspca_dev, row);
row[0] = 0x81 | (1 << 4) | 0x02;
row[2] = 0;
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
if (reg_r(gspca_dev, 0x10c2, 5) < 0)
return -EIO;
i2c_w(gspca_dev, row);
reg_r(gspca_dev, 0x10c2, 5);
*val = gspca_dev->usb_buf[4];
return 0;
}
static int i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val)
static void i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 row[8];
......@@ -1204,73 +1209,72 @@ static int i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val)
row[5] = 0;
row[6] = 0;
row[7] = 0x10;
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
i2c_w(gspca_dev, row);
row[0] = 0x81 | (2 << 4) | 0x02;
row[2] = 0;
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
if (reg_r(gspca_dev, 0x10c2, 5) < 0)
return -EIO;
i2c_w(gspca_dev, row);
reg_r(gspca_dev, 0x10c2, 5);
*val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
return 0;
}
static int ov9650_init_sensor(struct gspca_dev *gspca_dev)
static void ov9650_init_sensor(struct gspca_dev *gspca_dev)
{
int i;
u16 id;
struct sd *sd = (struct sd *) gspca_dev;
if (i2c_r2(gspca_dev, 0x1c, &id) < 0)
return -EINVAL;
i2c_r2(gspca_dev, 0x1c, &id);
if (gspca_dev->usb_err < 0)
return;
if (id != 0x7fa2) {
pr_err("sensor id for ov9650 doesn't match (0x%04x)\n", id);
return -ENODEV;
gspca_dev->usb_err = -ENODEV;
return;
}
for (i = 0; i < ARRAY_SIZE(ov9650_init); i++) {
if (i2c_w1(gspca_dev, ov9650_init[i].reg,
ov9650_init[i].val) < 0) {
i2c_w1(gspca_dev, ov9650_init[i].reg,
ov9650_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("OV9650 sensor initialization failed\n");
return -ENODEV;
return;
}
}
sd->hstart = 1;
sd->vstart = 7;
return 0;
}
static int ov9655_init_sensor(struct gspca_dev *gspca_dev)
static void ov9655_init_sensor(struct gspca_dev *gspca_dev)
{
int i;
struct sd *sd = (struct sd *) gspca_dev;
for (i = 0; i < ARRAY_SIZE(ov9655_init); i++) {
if (i2c_w1(gspca_dev, ov9655_init[i].reg,
ov9655_init[i].val) < 0) {
i2c_w1(gspca_dev, ov9655_init[i].reg,
ov9655_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("OV9655 sensor initialization failed\n");
return -ENODEV;
return;
}
}
/* disable hflip and vflip */
gspca_dev->ctrl_dis = (1 << HFLIP) | (1 << VFLIP);
sd->hstart = 1;
sd->vstart = 2;
return 0;
}
static int soi968_init_sensor(struct gspca_dev *gspca_dev)
static void soi968_init_sensor(struct gspca_dev *gspca_dev)
{
int i;
struct sd *sd = (struct sd *) gspca_dev;
for (i = 0; i < ARRAY_SIZE(soi968_init); i++) {
if (i2c_w1(gspca_dev, soi968_init[i].reg,
soi968_init[i].val) < 0) {
i2c_w1(gspca_dev, soi968_init[i].reg,
soi968_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("SOI968 sensor initialization failed\n");
return -ENODEV;
return;
}
}
/* disable hflip and vflip */
......@@ -1278,78 +1282,81 @@ static int soi968_init_sensor(struct gspca_dev *gspca_dev)
| (1 << EXPOSURE);
sd->hstart = 60;
sd->vstart = 11;
return 0;
}
static int ov7660_init_sensor(struct gspca_dev *gspca_dev)
static void ov7660_init_sensor(struct gspca_dev *gspca_dev)
{
int i;
struct sd *sd = (struct sd *) gspca_dev;
for (i = 0; i < ARRAY_SIZE(ov7660_init); i++) {
if (i2c_w1(gspca_dev, ov7660_init[i].reg,
ov7660_init[i].val) < 0) {
i2c_w1(gspca_dev, ov7660_init[i].reg,
ov7660_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("OV7660 sensor initialization failed\n");
return -ENODEV;
return;
}
}
sd->hstart = 3;
sd->vstart = 3;
return 0;
}
static int ov7670_init_sensor(struct gspca_dev *gspca_dev)
static void ov7670_init_sensor(struct gspca_dev *gspca_dev)
{
int i;
struct sd *sd = (struct sd *) gspca_dev;
for (i = 0; i < ARRAY_SIZE(ov7670_init); i++) {
if (i2c_w1(gspca_dev, ov7670_init[i].reg,
ov7670_init[i].val) < 0) {
i2c_w1(gspca_dev, ov7670_init[i].reg,
ov7670_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("OV7670 sensor initialization failed\n");
return -ENODEV;
return;
}
}
/* disable hflip and vflip */
gspca_dev->ctrl_dis = (1 << HFLIP) | (1 << VFLIP);
sd->hstart = 0;
sd->vstart = 1;
return 0;
}
static int mt9v_init_sensor(struct gspca_dev *gspca_dev)
static void mt9v_init_sensor(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i;
u16 value;
int ret;
sd->i2c_addr = 0x5d;
ret = i2c_r2(gspca_dev, 0xff, &value);
if ((ret == 0) && (value == 0x8243)) {
i2c_r2(gspca_dev, 0xff, &value);
if (gspca_dev->usb_err >= 0
&& value == 0x8243) {
for (i = 0; i < ARRAY_SIZE(mt9v011_init); i++) {
if (i2c_w2(gspca_dev, mt9v011_init[i].reg,
mt9v011_init[i].val) < 0) {
i2c_w2(gspca_dev, mt9v011_init[i].reg,
mt9v011_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("MT9V011 sensor initialization failed\n");
return -ENODEV;
return;
}
}
sd->hstart = 2;
sd->vstart = 2;
sd->sensor = SENSOR_MT9V011;
pr_info("MT9V011 sensor detected\n");
return 0;
return;
}
gspca_dev->usb_err = 0;
sd->i2c_addr = 0x5c;
i2c_w2(gspca_dev, 0x01, 0x0004);
ret = i2c_r2(gspca_dev, 0xff, &value);
if ((ret == 0) && (value == 0x823a)) {
i2c_r2(gspca_dev, 0xff, &value);
if (gspca_dev->usb_err >= 0
&& value == 0x823a) {
for (i = 0; i < ARRAY_SIZE(mt9v111_init); i++) {
if (i2c_w2(gspca_dev, mt9v111_init[i].reg,
mt9v111_init[i].val) < 0) {
i2c_w2(gspca_dev, mt9v111_init[i].reg,
mt9v111_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("MT9V111 sensor initialization failed\n");
return -ENODEV;
return;
}
}
gspca_dev->ctrl_dis = (1 << EXPOSURE)
......@@ -1359,78 +1366,83 @@ static int mt9v_init_sensor(struct gspca_dev *gspca_dev)
sd->vstart = 2;
sd->sensor = SENSOR_MT9V111;
pr_info("MT9V111 sensor detected\n");
return 0;
return;
}
gspca_dev->usb_err = 0;
sd->i2c_addr = 0x5d;
ret = i2c_w2(gspca_dev, 0xf0, 0x0000);
if (ret < 0) {
i2c_w2(gspca_dev, 0xf0, 0x0000);
if (gspca_dev->usb_err < 0) {
gspca_dev->usb_err = 0;
sd->i2c_addr = 0x48;
i2c_w2(gspca_dev, 0xf0, 0x0000);
}
ret = i2c_r2(gspca_dev, 0x00, &value);
if ((ret == 0) && (value == 0x1229)) {
i2c_r2(gspca_dev, 0x00, &value);
if (gspca_dev->usb_err >= 0
&& value == 0x1229) {
for (i = 0; i < ARRAY_SIZE(mt9v112_init); i++) {
if (i2c_w2(gspca_dev, mt9v112_init[i].reg,
mt9v112_init[i].val) < 0) {
i2c_w2(gspca_dev, mt9v112_init[i].reg,
mt9v112_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("MT9V112 sensor initialization failed\n");
return -ENODEV;
return;
}
}
sd->hstart = 6;
sd->vstart = 2;
sd->sensor = SENSOR_MT9V112;
pr_info("MT9V112 sensor detected\n");
return 0;
return;
}
return -ENODEV;
gspca_dev->usb_err = -ENODEV;
}
static int mt9m112_init_sensor(struct gspca_dev *gspca_dev)
static void mt9m112_init_sensor(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i;
for (i = 0; i < ARRAY_SIZE(mt9m112_init); i++) {
if (i2c_w2(gspca_dev, mt9m112_init[i].reg,
mt9m112_init[i].val) < 0) {
i2c_w2(gspca_dev, mt9m112_init[i].reg,
mt9m112_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("MT9M112 sensor initialization failed\n");
return -ENODEV;
return;
}
}
gspca_dev->ctrl_dis = (1 << EXPOSURE) | (1 << AUTOGAIN)
| (1 << GAIN);
sd->hstart = 0;
sd->vstart = 2;
return 0;
}
static int mt9m111_init_sensor(struct gspca_dev *gspca_dev)
static void mt9m111_init_sensor(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i;
for (i = 0; i < ARRAY_SIZE(mt9m111_init); i++) {
if (i2c_w2(gspca_dev, mt9m111_init[i].reg,
mt9m111_init[i].val) < 0) {
i2c_w2(gspca_dev, mt9m111_init[i].reg,
mt9m111_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("MT9M111 sensor initialization failed\n");
return -ENODEV;
return;
}
}
gspca_dev->ctrl_dis = (1 << EXPOSURE) | (1 << AUTOGAIN)
| (1 << GAIN);
sd->hstart = 0;
sd->vstart = 2;
return 0;
}
static int mt9m001_init_sensor(struct gspca_dev *gspca_dev)
static void mt9m001_init_sensor(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i;
u16 id;
if (i2c_r2(gspca_dev, 0x00, &id) < 0)
return -EINVAL;
i2c_r2(gspca_dev, 0x00, &id);
if (gspca_dev->usb_err < 0)
return;
/* must be 0x8411 or 0x8421 for colour sensor and 8431 for bw */
switch (id) {
......@@ -1443,38 +1455,39 @@ static int mt9m001_init_sensor(struct gspca_dev *gspca_dev)
break;
default:
pr_err("No MT9M001 chip detected, ID = %x\n\n", id);
return -ENODEV;
gspca_dev->usb_err = -ENODEV;
return;
}
for (i = 0; i < ARRAY_SIZE(mt9m001_init); i++) {
if (i2c_w2(gspca_dev, mt9m001_init[i].reg,
mt9m001_init[i].val) < 0) {
i2c_w2(gspca_dev, mt9m001_init[i].reg,
mt9m001_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("MT9M001 sensor initialization failed\n");
return -ENODEV;
return;
}
}
/* disable hflip and vflip */
gspca_dev->ctrl_dis = (1 << HFLIP) | (1 << VFLIP);
sd->hstart = 1;
sd->vstart = 1;
return 0;
}
static int hv7131r_init_sensor(struct gspca_dev *gspca_dev)
static void hv7131r_init_sensor(struct gspca_dev *gspca_dev)
{
int i;
struct sd *sd = (struct sd *) gspca_dev;
for (i = 0; i < ARRAY_SIZE(hv7131r_init); i++) {
if (i2c_w1(gspca_dev, hv7131r_init[i].reg,
hv7131r_init[i].val) < 0) {
i2c_w1(gspca_dev, hv7131r_init[i].reg,
hv7131r_init[i].val);
if (gspca_dev->usb_err < 0) {
pr_err("HV7131R Sensor initialization failed\n");
return -ENODEV;
return;
}
}
sd->hstart = 0;
sd->vstart = 1;
return 0;
}
static void set_cmatrix(struct gspca_dev *gspca_dev)
......@@ -1720,22 +1733,19 @@ static int sd_dbg_g_register(struct gspca_dev *gspca_dev,
return -EINVAL;
if (reg->reg < 0x1000 || reg->reg > 0x11ff)
return -EINVAL;
if (reg_r(gspca_dev, reg->reg, 1) < 0)
return -EINVAL;
reg_r(gspca_dev, reg->reg, 1);
reg->val = gspca_dev->usb_buf[0];
return 0;
return gspca_dev->usb_err;
case V4L2_CHIP_MATCH_I2C_ADDR:
if (reg->match.addr != sd->i2c_addr)
return -EINVAL;
if (sd->sensor >= SENSOR_MT9V011 &&
sd->sensor <= SENSOR_MT9M112) {
if (i2c_r2(gspca_dev, reg->reg, (u16 *)&reg->val) < 0)
return -EINVAL;
i2c_r2(gspca_dev, reg->reg, (u16 *) &reg->val);
} else {
if (i2c_r1(gspca_dev, reg->reg, (u8 *)&reg->val) < 0)
return -EINVAL;
i2c_r1(gspca_dev, reg->reg, (u8 *) &reg->val);
}
return 0;
return gspca_dev->usb_err;
}
return -EINVAL;
}
......@@ -1750,21 +1760,18 @@ static int sd_dbg_s_register(struct gspca_dev *gspca_dev,
return -EINVAL;
if (reg->reg < 0x1000 || reg->reg > 0x11ff)
return -EINVAL;
if (reg_w1(gspca_dev, reg->reg, reg->val) < 0)
return -EINVAL;
return 0;
reg_w1(gspca_dev, reg->reg, reg->val);
return gspca_dev->usb_err;
case V4L2_CHIP_MATCH_I2C_ADDR:
if (reg->match.addr != sd->i2c_addr)
return -EINVAL;
if (sd->sensor >= SENSOR_MT9V011 &&
sd->sensor <= SENSOR_MT9M112) {
if (i2c_w2(gspca_dev, reg->reg, reg->val) < 0)
return -EINVAL;
i2c_w2(gspca_dev, reg->reg, reg->val);
} else {
if (i2c_w1(gspca_dev, reg->reg, reg->val) < 0)
return -EINVAL;
i2c_w1(gspca_dev, reg->reg, reg->val);
}
return 0;
return gspca_dev->usb_err;
}
return -EINVAL;
}
......@@ -1844,9 +1851,10 @@ static int sd_init(struct gspca_dev *gspca_dev)
for (i = 0; i < ARRAY_SIZE(bridge_init); i++) {
value = bridge_init[i][1];
if (reg_w(gspca_dev, bridge_init[i][0], &value, 1) < 0) {
reg_w(gspca_dev, bridge_init[i][0], &value, 1);
if (gspca_dev->usb_err < 0) {
pr_err("Device initialization failed\n");
return -ENODEV;
return gspca_dev->usb_err;
}
}
......@@ -1855,66 +1863,77 @@ static int sd_init(struct gspca_dev *gspca_dev)
else
reg_w1(gspca_dev, 0x1006, 0x20);
if (reg_w(gspca_dev, 0x10c0, i2c_init, 9) < 0) {
reg_w(gspca_dev, 0x10c0, i2c_init, 9);
if (gspca_dev->usb_err < 0) {
pr_err("Device initialization failed\n");
return -ENODEV;
return gspca_dev->usb_err;
}
switch (sd->sensor) {
case SENSOR_OV9650:
if (ov9650_init_sensor(gspca_dev) < 0)
return -ENODEV;
ov9650_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("OV9650 sensor detected\n");
break;
case SENSOR_OV9655:
if (ov9655_init_sensor(gspca_dev) < 0)
return -ENODEV;
ov9655_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("OV9655 sensor detected\n");
break;
case SENSOR_SOI968:
if (soi968_init_sensor(gspca_dev) < 0)
return -ENODEV;
soi968_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("SOI968 sensor detected\n");
break;
case SENSOR_OV7660:
if (ov7660_init_sensor(gspca_dev) < 0)
return -ENODEV;
ov7660_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("OV7660 sensor detected\n");
break;
case SENSOR_OV7670:
if (ov7670_init_sensor(gspca_dev) < 0)
return -ENODEV;
ov7670_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("OV7670 sensor detected\n");
break;
case SENSOR_MT9VPRB:
if (mt9v_init_sensor(gspca_dev) < 0)
return -ENODEV;
mt9v_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
break;
case SENSOR_MT9M111:
if (mt9m111_init_sensor(gspca_dev) < 0)
return -ENODEV;
mt9m111_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("MT9M111 sensor detected\n");
break;
case SENSOR_MT9M112:
if (mt9m112_init_sensor(gspca_dev) < 0)
return -ENODEV;
mt9m112_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("MT9M112 sensor detected\n");
break;
case SENSOR_MT9M001:
if (mt9m001_init_sensor(gspca_dev) < 0)
return -ENODEV;
mt9m001_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
break;
case SENSOR_HV7131R:
if (hv7131r_init_sensor(gspca_dev) < 0)
return -ENODEV;
hv7131r_init_sensor(gspca_dev);
if (gspca_dev->usb_err < 0)
break;
pr_info("HV7131R sensor detected\n");
break;
default:
pr_info("Unsupported Sensor\n");
return -ENODEV;
gspca_dev->usb_err = -ENODEV;
}
return 0;
return gspca_dev->usb_err;
}
static void configure_sensor_output(struct gspca_dev *gspca_dev, int mode)
......@@ -2076,7 +2095,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
reg_r(gspca_dev, 0x1061, 1);
reg_w1(gspca_dev, 0x1061, gspca_dev->usb_buf[0] | 0x02);
return 0;
return gspca_dev->usb_err;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
......
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