From 4462864d723fcae990bde5621a19a8dce9231cfa Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jean-Fran=C3=A7ois=20Moine?= Date: Sat, 5 Jun 2010 07:47:36 -0300 Subject: [PATCH] V4L/DVB: gspca - main: Function gspca_dev_probe2 added MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This function is used when the USB video interface is checked by the subdriver. Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/gspca.c | 46 +++++++++++++++++++++---------- drivers/media/video/gspca/gspca.h | 5 ++++ 2 files changed, 36 insertions(+), 15 deletions(-) diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 678675bb3652..b7a5655cfd55 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -2253,31 +2253,18 @@ static struct video_device gspca_template = { * This function must be called by the sub-driver when it is * called for probing a new device. */ -int gspca_dev_probe(struct usb_interface *intf, +int gspca_dev_probe2(struct usb_interface *intf, const struct usb_device_id *id, const struct sd_desc *sd_desc, int dev_size, struct module *module) { - struct usb_interface_descriptor *interface; struct gspca_dev *gspca_dev; struct usb_device *dev = interface_to_usbdev(intf); int ret; PDEBUG(D_PROBE, "probing %04x:%04x", id->idVendor, id->idProduct); - /* we don't handle multi-config cameras */ - if (dev->descriptor.bNumConfigurations != 1) { - PDEBUG(D_ERR, "Too many config"); - return -ENODEV; - } - - /* the USB video interface must be the first one */ - interface = &intf->cur_altsetting->desc; - if (dev->config->desc.bNumInterfaces != 1 && - interface->bInterfaceNumber != 0) - return -ENODEV; - /* create the device */ if (dev_size < sizeof *gspca_dev) dev_size = sizeof *gspca_dev; @@ -2293,7 +2280,7 @@ int gspca_dev_probe(struct usb_interface *intf, goto out; } gspca_dev->dev = dev; - gspca_dev->iface = interface->bInterfaceNumber; + gspca_dev->iface = intf->cur_altsetting->desc.bInterfaceNumber; gspca_dev->nbalt = intf->num_altsetting; gspca_dev->sd_desc = sd_desc; gspca_dev->nbufread = 2; @@ -2345,6 +2332,35 @@ out: kfree(gspca_dev); return ret; } +EXPORT_SYMBOL(gspca_dev_probe2); + +/* same function as the previous one, but check the interface */ +int gspca_dev_probe(struct usb_interface *intf, + const struct usb_device_id *id, + const struct sd_desc *sd_desc, + int dev_size, + struct module *module) +{ + struct usb_device *dev = interface_to_usbdev(intf); + + /* we don't handle multi-config cameras */ + if (dev->descriptor.bNumConfigurations != 1) { + PDEBUG(D_ERR, "%04x:%04x too many config", + id->idVendor, id->idProduct); + return -ENODEV; + } + + /* the USB video interface must be the first one */ + if (dev->config->desc.bNumInterfaces != 1 + && intf->cur_altsetting->desc.bInterfaceNumber != 0) { + PDEBUG(D_ERR, "%04x:%04x bad interface %d", + id->idVendor, id->idProduct, + intf->cur_altsetting->desc.bInterfaceNumber); + return -ENODEV; + } + + return gspca_dev_probe2(intf, id, sd_desc, dev_size, module); +} EXPORT_SYMBOL(gspca_dev_probe); /* diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h index 8b963dfae861..3215e4216a31 100644 --- a/drivers/media/video/gspca/gspca.h +++ b/drivers/media/video/gspca/gspca.h @@ -217,6 +217,11 @@ int gspca_dev_probe(struct usb_interface *intf, const struct sd_desc *sd_desc, int dev_size, struct module *module); +int gspca_dev_probe2(struct usb_interface *intf, + const struct usb_device_id *id, + const struct sd_desc *sd_desc, + int dev_size, + struct module *module); void gspca_disconnect(struct usb_interface *intf); void gspca_frame_add(struct gspca_dev *gspca_dev, enum gspca_packet_type packet_type, -- 2.30.2