[Nut-upsuser] Driver does not detect megatec_usb UPS

[Noel David Torres Taño]

Hello all:

I have a Yukai PowerMust 1000 USB and it used to work on another computer 
using megatec_usb driver.

Now, I have it in a new computer, but the driver does not detect it.

It is there:

# lsusb|grep Cypress
Bus 006 Device 007: ID 0665:5161 Cypress Semiconductor USB to Serial

Permissions are OK:

# ls -l /dev/bus/usb/006/007
crw-rw-r-- 1 root nut 189, 646 ago  8 01:51 /dev/bus/usb/006/007

But the driver does not get it:

# /lib/nut/megatec_usb -a yukai -u root
Network UPS Tools - Megatec protocol driver 1.6 (2.4.3)
Serial-over-USB transport layer 0.10
ser_get_line: Device detached? (error -1: No error)
Successfully reconnected
ser_get_line: Device detached? (error -1: No error)
Successfully reconnected
ser_get_line: Device detached? (error -1: No error)
Successfully reconnected
Megatec protocol UPS not detected.

(that lasted several minutes)

USB info of the UPS:

# lsusb -vv -d 0665:5161

Bus 006 Device 007: ID 0665:5161 Cypress Semiconductor USB to Serial
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x0665 Cypress Semiconductor
  idProduct          0x5161 USB to Serial
  bcdDevice            0.02
  iManufacturer           1 Cypress Semiconductor
  iProduct                2 USB to Serial
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           34
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          3 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 No Subclass
      bInterfaceProtocol      0 None
      iInterface              4 Sample HID
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      27
          Report Descriptor: (length is 27)
            Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
                            (null)
            Item(Local ): Usage, data= [ 0x01 ] 1
                            (null)
            Item(Main  ): Collection, data= [ 0x01 ] 1
                            Application
            Item(Local ): Usage, data= [ 0x02 ] 2
                            (null)
            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= [ 0x08 ] 8
            Item(Main  ): Input, data= [ 0x82 ] 130
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Volatile Bitfield
            Item(Local ): Usage, data= [ 0x02 ] 2
                            (null)
            Item(Global): Report Count, data= [ 0x08 ] 8
            Item(Main  ): Output, data= [ 0x82 ] 130
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position 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     0x0008  1x 8 bytes
        bInterval              32
Device Status:     0x0000
  (Bus Powered)

OS is Debian (frozen) testing, also called Squeeze

Any idea?

Many thanks

Noel
er Envite