Comfast CF-926AC Does Not Change Its USB ID · Issue #393 - GitHub

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Comfast CF-926AC does not change its USB ID #393New issueCopy linkNew issueCopy linkOpenOpenComfast CF-926AC does not change its USB ID#393Copy link

Description

BKPepeopened on Apr 11, 2020Issue body actions

In OpenWrt 19.07, I installed kmod-mt76x2u (version: 4.14.172+2020-03-10-08054d5a-1-d3f64c5022212753017f85fd9365b83f.0) for Comfast CF-926AC. It is USB 3.0 dual-band 2T2R Wi-Fi dongle with chipset Mediatek MT7612U is detected as mass storage device.

On router: dmesg:

[ 706.765409] usb 2-1: new high-speed USB device number 3 using xhci-hcd [ 706.956529] usb-storage 2-1:1.0: USB Mass Storage device detected [ 706.973423] scsi host3: usb-storage 2-1:1.0 [ 707.985568] scsi 3:0:0:0: CD-ROM MediaTek Flash autorun 0.01 PQ: 0 ANSI: 0 CC

lsusb -v

Bus 002 Device 006: ID 0e8d:2870 MediaTek Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0e8d MediaTek Inc. idProduct 0x2870 bcdDevice 0.01 iManufacturer 1 Љ iProduct 2 Љ iSerial 3 Љ bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 160mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0002 (Bus Powered) Remote Wakeup Enabled

On GNU/Linux distro with kernel 5.6.0-1-default:

dmesg

[21706.282852] usb 1-2: new high-speed USB device number 6 using xhci_hcd [21706.305276] usb 1-2: New USB device found, idVendor=0e8d, idProduct=2870, bcdDevice= 0.01 [21706.305281] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [21706.305284] usb 1-2: Product: Љ [21706.305287] usb 1-2: Manufacturer: Љ [21706.305289] usb 1-2: SerialNumber: Љ [21706.308919] usb-storage 1-2:1.0: USB Mass Storage device detected [21706.309516] scsi host4: usb-storage 1-2:1.0 [21706.967709] usb 1-2: USB disconnect, device number 6 [21707.879244] usb 2-3: new SuperSpeed Gen 1 USB device number 90 using xhci_hcd [21707.901685] usb 2-3: New USB device found, idVendor=0e8d, idProduct=7612, bcdDevice= 1.00 [21707.901691] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [21707.901694] usb 2-3: Product: 802.11ac WLAN [21707.901697] usb 2-3: Manufacturer: MediaTek Inc. [21707.901699] usb 2-3: SerialNumber: 000000000 [21708.039806] usb 2-3: reset SuperSpeed Gen 1 USB device number 90 using xhci_hcd [21708.061751] mt76x2u 2-3:1.0: ASIC revision: 76120044 [21708.100333] mt76x2u 2-3:1.0: ROM patch build: 20141115060606a [21708.249742] mt76x2u 2-3:1.0: Firmware Version: 0.0.00 [21708.249747] mt76x2u 2-3:1.0: Build: 1 [21708.249750] mt76x2u 2-3:1.0: Build Time: 201507311614____ [21709.208759] ieee80211 phy89: Selected rate control algorithm 'minstrel_ht' [21709.845941] mt76x2u 2-3:1.0 wlp0s20f0u3: renamed from wlan0

lsusb -v

Bus 002 Device 102: ID 0e8d:7612 MediaTek Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 9 idVendor 0x0e8d MediaTek Inc. idProduct 0x7612 bcdDevice 1.00 iManufacturer 1 iProduct 2 iSerial 3 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x007a bNumInterfaces 1 bConfigurationValue 1 iConfiguration 2 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 800mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 8 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 2 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x08 EP 8 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x07 EP 7 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x09 EP 9 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 1

Based on the USB ID, I see that this should be supported with this driver.

If there's anything what you need, let me know.

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