diff options
Diffstat (limited to 'drivers/net/usb/r8152.c')
| -rw-r--r-- | drivers/net/usb/r8152.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 34c1ee61af01..9119a860e9bd 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -29,7 +29,7 @@ #include <linux/usb/r8152.h> /* Information for net-next */ -#define NETNEXT_VERSION "11" +#define NETNEXT_VERSION "12" /* Information for net */ #define NET_VERSION "11" @@ -8107,6 +8107,39 @@ static void r8156b_init(struct r8152 *tp) tp->coalesce = 15000; /* 15 us */ } +static bool rtl_vendor_mode(struct usb_interface *intf) +{ + struct usb_host_interface *alt = intf->cur_altsetting; + struct usb_device *udev; + struct usb_host_config *c; + int i, num_configs; + + if (alt->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) + return true; + + /* The vendor mode is not always config #1, so to find it out. */ + udev = interface_to_usbdev(intf); + c = udev->config; + num_configs = udev->descriptor.bNumConfigurations; + for (i = 0; i < num_configs; (i++, c++)) { + struct usb_interface_descriptor *desc = NULL; + + if (c->desc.bNumInterfaces > 0) + desc = &c->intf_cache[0]->altsetting->desc; + else + continue; + + if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) { + usb_driver_set_configuration(udev, c->desc.bConfigurationValue); + break; + } + } + + WARN_ON_ONCE(i == num_configs); + + return false; +} + static int rtl8152_pre_reset(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); @@ -9345,10 +9378,8 @@ static int rtl8152_probe(struct usb_interface *intf, if (version == RTL_VER_UNKNOWN) return -ENODEV; - if (udev->actconfig->desc.bConfigurationValue != 1) { - usb_driver_set_configuration(udev, 1); + if (!rtl_vendor_mode(intf)) return -ENODEV; - } if (intf->cur_altsetting->desc.bNumEndpoints < 3) return -ENODEV; |