On 05/22/2018 05:42 PM, [email protected] wrote:
> Hi,
> 
> On a machine with sys-usb configured and mouse/keyboard connected
> through "old" PS2-connections, I've noticed this when running lsusb -v
> 
> Michal Lee has pointed this out earlier
> (https://groups.google.com/d/msg/qubes-users/EANuL9rj_6w/-tjgYcThBAAJ),
> but I still lack an explanation of what is going on here.

The adomax device is a virtual qemu "tablet" used to provide absolute
mouse coordinates. In other words it helps with mouse pointer
synchronization between the host and vms.

You may have noticed that the device is picked up by sys-usb's
input-proxy sender as a HID device, which is why you may get a popup
dialog (if qubes.InputKeyboard policy is set to 'ask') - even if you
don't have a usb keyboard.


> 
> 
> Best regards
> Ed Alvarez
> 
> 
> 
> [code]
> 
> [someuser@sys-usb]$ sudo lsusb -v
> 
> (...)
> 
> Bus 005 Device 002: ID 0627:0001 Adomax Technology Co., Ltd 
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            0 
>   bDeviceSubClass         0 
>   bDeviceProtocol         0 
>   bMaxPacketSize0         8
>   idVendor           0x0627 Adomax Technology Co., Ltd
>   idProduct          0x0001 
>   bcdDevice            0.00
>   iManufacturer           1 QEMU
>   iProduct                3 QEMU USB Tablet
>   iSerial                 5 42
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           34
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          7 HID Tablet
>     bmAttributes         0xa0
>       (Bus Powered)
>       Remote Wakeup
>     MaxPower              100mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         3 Human Interface Device
>       bInterfaceSubClass      0 
>       bInterfaceProtocol      0 
>       iInterface              0 
>         HID Device Descriptor:
>           bLength                 9
>           bDescriptorType        33
>           bcdHID               0.01
>           bCountryCode            0 Not supported
>           bNumDescriptors         1
>           bDescriptorType        34 Report
>           wDescriptorLength      74
>          Report Descriptors: 
>            ** UNAVAILABLE **
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval              10
> Device Qualifier (for other device speed):
>   bLength                10
>   bDescriptorType         6
>   bcdUSB               2.00
>   bDeviceClass            0 
>   bDeviceSubClass         0 
>   bDeviceProtocol         0 
>   bMaxPacketSize0        64
>   bNumConfigurations      1
> can't get debug descriptor: Resource temporarily unavailable
> Device Status:     0x0000
>   (Bus Powered)
> 
> (...)
> 
> [/code]
> 

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