diff options
Diffstat (limited to 'target/linux/generic/patches-3.18/192-USB-qcserial-Add-support-for-Quectel-EC20-Mini-PCIe-.patch')
| -rw-r--r-- | target/linux/generic/patches-3.18/192-USB-qcserial-Add-support-for-Quectel-EC20-Mini-PCIe-.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.18/192-USB-qcserial-Add-support-for-Quectel-EC20-Mini-PCIe-.patch b/target/linux/generic/patches-3.18/192-USB-qcserial-Add-support-for-Quectel-EC20-Mini-PCIe-.patch new file mode 100644 index 0000000000..f56941cbb8 --- /dev/null +++ b/target/linux/generic/patches-3.18/192-USB-qcserial-Add-support-for-Quectel-EC20-Mini-PCIe-.patch @@ -0,0 +1,119 @@ +From 128524b9db3e4f4245226852bee771bd03db75be Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz> +Date: Tue, 3 Nov 2015 11:01:42 +0100 +Subject: [PATCH 1/2] USB: qcserial: Add support for Quectel EC20 Mini PCIe + module +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It seems like 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 which makes it currently unusable: + + usbcore: registered new interface driver qcserial + usbserial: USB Serial support registered for Qualcomm USB modem + usb 2-1.2: unknown number of interfaces: 5 + +lsusb output: + + Bus 002 Device 003: ID 05c6:9215 Qualcomm, Inc. Acer Gobi 2000 Wireless + 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/usb/serial/qcserial.c | 39 +++++++++++++++++++++++++++++++++++++++ + 1 file changed, 39 insertions(+) + +diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c +index ebcec8c..d462132 100644 +--- a/drivers/usb/serial/qcserial.c ++++ b/drivers/usb/serial/qcserial.c +@@ -22,6 +22,8 @@ + #define DRIVER_AUTHOR "Qualcomm Inc" + #define DRIVER_DESC "Qualcomm USB Serial driver" + ++#define QUECTEL_EC20_IDPRODUCT 0x9215 ++ + /* standard device layouts supported by this driver */ + enum qcserial_layouts { + QCSERIAL_G2K = 0, /* Gobi 2000 */ +@@ -167,6 +169,38 @@ static const struct usb_device_id id_table[] = { + }; + MODULE_DEVICE_TABLE(usb, id_table); + ++static int handle_quectel_ec20(struct device *dev, int ifnum) ++{ ++ int altsetting = 0; ++ ++ /* ++ * Quectel EC20 Mini PCIe LTE module layout: ++ * 0: DM/DIAG (use libqcdm from ModemManager for communication) ++ * 1: NMEA ++ * 2: AT-capable modem port ++ * 3: Modem interface ++ * 4: NDIS ++ */ ++ switch (ifnum) { ++ case 0: ++ dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n"); ++ break; ++ case 1: ++ dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n"); ++ break; ++ case 2: ++ case 3: ++ dev_dbg(dev, "Quectel EC20 Modem port found\n"); ++ break; ++ case 4: ++ /* Don't claim the QMI/net interface */ ++ altsetting = -1; ++ break; ++ } ++ ++ return altsetting; ++} ++ + static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) + { + struct usb_host_interface *intf = serial->interface->cur_altsetting; +@@ -235,6 +269,11 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) + altsetting = -1; + break; + case QCSERIAL_G2K: ++ if (nintf == 5 && id->idProduct == QUECTEL_EC20_IDPRODUCT) { ++ altsetting = handle_quectel_ec20(dev, ifnum); ++ goto done; ++ } ++ + /* + * Gobi 2K+ USB layout: + * 0: QMI/net +-- +1.7.9.5 + |