缺少 USB“输出”端点？

我正在尝试与作为激光控制器的 USB 设备通信。该设备有一个 Windows 控制器，它既可以写入（打开或关闭激光），也可以读取（获取激光的状态，打开或关闭）。现在我想使用 Python 在 Linux 机器上复制它。我能够成功地从设备读取，但由于某种原因我无法写入它（有关更多详细信息，请参阅此 SO 问题）。

我对USB通信没有太多经验，但是我在某处看到IN端点用于读取，OUT端点用于写入，并且我注意到当lsusb -v -d <my_device>我得到一个IN端点但没有OUT端点时，所以这可能成为我问题的原因。它看起来像一个“只读设备”（我可能错了）。

我现在的问题是：在 Linux 中，是否有可能OUT由于缺少驱动程序或某些配置而看不到端点？

这是的输出lsusb -v -d <my_device>：

Bus 002 Device 010: ID c251:2201 Keil Software, Inc. LASER Driver IJS
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0xc251 Keil Software, Inc.
  idProduct          0x2201 
  bcdDevice            1.00
  iManufacturer           1 LASER Driver 
  iProduct                2 LASER Driver IJS
  iSerial                 3 0001A0000000
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0022
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              4 HID
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      33
          Report Descriptor: (length is 33)
            Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
                            (null)
            Item(Local ): Usage, data= [ 0x01 ] 1
                            (null)
            Item(Main  ): Collection, data= [ 0x01 ] 1
                            Application
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
            Item(Global): Report Size, data= [ 0x08 ] 8
            Item(Global): Report Count, data= [ 0x40 ] 64
            Item(Local ): Usage, data= [ 0x10 ] 16
                            (null)
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Count, data= [ 0x40 ] 64
            Item(Local ): Usage, data= [ 0x10 ] 16
                            (null)
            Item(Main  ): Output, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Local ): Usage, data= [ 0x01 ] 1
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
Device Status:     0x0001
  Self Powered