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Fri, 16 Apr 2021 04:06:36 -0400 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 13G866Sn8023557, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36502.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.71/5.88) with ESMTPS id 13G866Sn8023557 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 16 Apr 2021 16:06:06 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36502.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Fri, 16 Apr 2021 16:06:05 +0800 Received: from fc32.localdomain (172.21.177.102) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Fri, 16 Apr 2021 16:06:04 +0800 From: Hayes Wang To: , CC: , , , , Hayes Wang Subject: [PATCH net-next 6/6] r8152: search the configuration of vendor mode Date: Fri, 16 Apr 2021 16:04:37 +0800 Message-ID: <1394712342-15778-356-Taiwan-albertk@realtek.com> X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <1394712342-15778-350-Taiwan-albertk@realtek.com> References: <1394712342-15778-350-Taiwan-albertk@realtek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; 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Signed-off-by: Hayes Wang --- drivers/net/usb/r8152.c | 39 +++++++++++++++++++++++++++++++++++---- 1 file 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 /* 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; -- 2.26.3