kernel-packages team mailing list archive

[yuehan <nae.ioan@xxxxxxxxx>]

There is no  CH374 driver in 4.2-0-27-generic kernels  and greater, only
CH341.ko

** Changed in: linux-firmware (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1548088

Title:
  ch374 usb driver not included in kernel 4.2-0-27-generic

Status in linux-firmware package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 15.10 kernel (4.2-0-27-generic) does not contain a driver for the "WinChipHead 13.56MHz RFID Card Reader and Writer" (ID 4348: 5537, Product name: CH374) but contains the driver for the older version - CH341 (ch341.ko) . The chip is properly recognized, but the lack of communication with him.
  It's too bad, because thechip "WinChipHead 13.56MHz RFID Card Reader and Writer" is used in my Digital Storage Oscilloscope (DSO)
  Regards - Janusz
  ----
  #driver for ch341
  /lib/modules/4.2.0-27-generic/kernel/drivers/usb/serial/ch341.ko

  #lsusb
  Bus 009 Device 005: ID 4348:5537 WinChipHead 13.56Mhz RFID Card Reader and Writer

  #dmesg | grep...
  [10069.356763] usb 9-2: new full-speed USB device number 5 using ohci-pci
  [10069.517929] usb 9-2: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 32
  [10069.523946] usb 9-2: New USB device found, idVendor=4348, idProduct=5537
  [10069.523957] usb 9-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  [10069.523964] usb 9-2: Product: CH374
  [10069.523970] usb 9-2: Manufacturer: wch.cn

  #usb-devices
  T:  Bus=09 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  4 Spd=12  MxCh= 0
  D:  Ver= 1.10 Cls=ff(vend.) Sub=80 Prot=37 MxPS= 8 #Cfgs=  1
  P:  Vendor=4348 ProdID=5537 Rev=01.00
  S:  Manufacturer=wch.cn
  S:  Product=CH374
  C:  #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
  I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=80 Prot=37 Driver=(none)

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