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- From fe29727caa7fe434fcb3166df2a62672bc516b54 Mon Sep 17 00:00:00 2001
- From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
- Date: Wed, 4 Nov 2015 16:23:37 +0100
- Subject: [PATCH 2/2] USB: qmi_wwan: Add quirk for Quectel EC20 Mini PCIe
- module
- MIME-Version: 1.0
- Content-Type: text/plain; charset=UTF-8
- Content-Transfer-Encoding: 8bit
- This device has same vendor and product IDs as G2K devices, but it has
- different number of interfaces(4 vs 5) and also different interface
- layout where EC20 has QMI on interface 4 instead of 0.
- lsusb output:
- Bus 002 Device 003: ID 05c6:9215 Qualcomm, Inc. Acer Gobi 2000
- Device Descriptor:
- bLength 18
- bDescriptorType 1
- bcdUSB 2.00
- bDeviceClass 0 (Defined at Interface level)
- bDeviceSubClass 0
- bDeviceProtocol 0
- bMaxPacketSize0 64
- idVendor 0x05c6 Qualcomm, Inc.
- idProduct 0x9215 Acer Gobi 2000 Wireless Modem
- bcdDevice 2.32
- iManufacturer 1 Quectel
- iProduct 2 Quectel LTE Module
- iSerial 0
- bNumConfigurations 1
- Configuration Descriptor:
- bLength 9
- bDescriptorType 2
- wTotalLength 209
- bNumInterfaces 5
- bConfigurationValue 1
- iConfiguration 0
- bmAttributes 0xa0
- (Bus Powered)
- Remote Wakeup
- MaxPower 500mA
- Signed-off-by: Petr Štetiar <ynezz@true.cz>
- ---
- drivers/net/usb/qmi_wwan.c | 21 +++++++++++++++++++++
- 1 file changed, 21 insertions(+)
- --- a/drivers/net/usb/qmi_wwan.c
- +++ b/drivers/net/usb/qmi_wwan.c
- @@ -836,6 +836,7 @@ static const struct usb_device_id produc
- {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
- {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
- {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
- + {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */
- {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
- {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
- {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
- @@ -867,6 +868,19 @@ static const struct usb_device_id produc
- };
- MODULE_DEVICE_TABLE(usb, products);
-
- +static bool quectel_ec20_detected(struct usb_interface *intf)
- +{
- + struct usb_device *dev = interface_to_usbdev(intf);
- +
- + if (dev->actconfig &&
- + le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 &&
- + le16_to_cpu(dev->descriptor.idProduct) == 0x9215 &&
- + dev->actconfig->desc.bNumInterfaces == 5)
- + return true;
- +
- + return false;
- +}
- +
- static int qmi_wwan_probe(struct usb_interface *intf,
- const struct usb_device_id *prod)
- {
- @@ -895,6 +909,12 @@ static int qmi_wwan_probe(struct usb_int
- return -ENODEV;
- }
-
- + /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */
- + if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) {
- + dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n");
- + return -ENODEV;
- + }
- +
- return usbnet_probe(intf, id);
- }
-
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