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K800 keyboard battery status unavailable. #576

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kgorol opened this issue Oct 25, 2019 · 26 comments · Fixed by #629
Closed

K800 keyboard battery status unavailable. #576

kgorol opened this issue Oct 25, 2019 · 26 comments · Fixed by #629

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@kgorol
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kgorol commented Oct 25, 2019

I am using the newest Manjaro x64.

This is the solaar show command output:

[xxx@xxx-pc ~]$ solaar show
Unifying Receiver
  Device path  : /dev/hidraw0
  USB id       : 046d:c52b
  Serial       : DC279AB2
    Firmware   : 24.07.B0030
    Bootloader : 02.09
    Other      : AA.AC
  Has 2 paired device(s) out of a maximum of 6.
  Notifications: wireless, software present (0x000900)
  Device activity counters: 1=155, 2=181

  1: Wireless Mouse MX Master 2S
     Codename     : MX Master 2S
     Kind         : mouse
     Wireless PID : 4069
     Protocol     : HID++ 4.5
     Polling rate : 8 ms (125Hz)
     Serial number: A6A40064
        Bootloader: BOT 56.10.B0005
          Firmware: MPM 12.10.B0005
          Firmware: MPM 12.10.B0005
             Other: 
     The power switch is located on the base.
     Supports 32 HID++ 2.0 features:
         0: ROOT                   {0000}   
         1: FEATURE SET            {0001}   
         2: DEVICE FW VERSION      {0003}   
         3: DEVICE NAME            {0005}   
         4: WIRELESS DEVICE STATUS {1D4B}   
         5: RESET                  {0020}   
         6: unknown:0021           {0021}   
         7: BATTERY STATUS         {1000}   
         8: unknown:1806           {1806}   internal, hidden
         9: CHANGE HOST            {1814}   
        10: REPROG CONTROLS V4     {1B04}   
        11: ADJUSTABLE DPI         {2201}   
        12: VERTICAL SCROLLING     {2100}   
            Roller type: 3G
            Ratchet per turn: 24
            Scroll lines: 0
        13: SMART SHIFT            {2110}   
        14: HIRES WHEEL            {2121}   
            Multiplier: 8
            Has invert
              Normal wheel motion
            Has ratchet switch
              Normal wheel mode
            High resolution mode
            HID notification
        15: GESTURE 2              {6501}   
        16: unknown:00C2           {00C2}   
        17: unknown:1813           {1813}   internal, hidden
        18: unknown:1830           {1830}   internal, hidden
        19: unknown:1890           {1890}   internal, hidden
        20: unknown:1891           {1891}   internal, hidden
        21: unknown:18A1           {18A1}   internal, hidden
        22: unknown:18C0           {18C0}   internal, hidden
        23: unknown:1DF3           {1DF3}   internal, hidden
        24: unknown:1E00           {1E00}   hidden
        25: unknown:1EB0           {1EB0}   internal, hidden
        26: unknown:1803           {1803}   internal, hidden
        27: unknown:1861           {1861}   internal, hidden
        28: unknown:9001           {9001}   internal, hidden
        29: unknown:9200           {9200}   internal, hidden
        30: unknown:9202           {9202}   internal, hidden
        31: unknown:1805           {1805}   internal, hidden
     Has 8 reprogrammable keys:
         0: LEFT CLICK                , default: LeftClick                   => LEFT CLICK                
             mse, pos:0, group:1, gmask:1
         1: RIGHT CLICK               , default: RightClick                  => RIGHT CLICK               
             mse, pos:0, group:1, gmask:1
         2: MIDDLE BUTTON             , default: MiddleMouseButton           => MIDDLE BUTTON             
             mse, reprogrammable, divertable, pos:0, group:3, gmask:7
         3: BACK AS BUTTON 4          , default: BackEx                      => BACK AS BUTTON 4          
             mse, reprogrammable, divertable, pos:0, group:2, gmask:3
         4: FORWARD AS BUTTON 5       , default: BrowserForwardEx            => FORWARD AS BUTTON 5       
             mse, reprogrammable, divertable, pos:0, group:2, gmask:3
         5: unknown:00C3              , default: unknown:00A9                => unknown:00C3              
             mse, reprogrammable, divertable, pos:0, group:3, gmask:7
         6: unknown:00C4              , default: unknown:009D                => unknown:00C4              
             mse, reprogrammable, divertable, pos:0, group:3, gmask:7
         7: unknown:00D7              , default: unknown:00B4                => unknown:00D7              
             divertable, virtual, pos:0, group:4, gmask:0
     Battery: 20%, discharging.

  2: Wireless Illuminated Keyboard K800
     Codename     : K800
     Kind         : keyboard
     Wireless PID : 406E
     Protocol     : HID++ 4.5
     Polling rate : 20 ms (50Hz)
     Serial number: 636E1413
     The power switch is located on the top right corner.
     Battery status unavailable.
@rathann
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rathann commented Oct 31, 2019

Which solaar version are you running? Have you checked if you have the latest firmware? You can update it using fwupd. I happen to have the same keyboard (though a different receiver dongle) and it works for me (serial numbers redacted) on Fedora 30:

$ rpm -q solaar
solaar-1.0.1-1.fc30.noarch
$ solaar show
Unifying Receiver
  Device path  : /dev/hidraw1
  USB id       : 046d:c52b
  Serial       : AABBCCDD
    Firmware   : 12.08.B0030
    Bootloader : 02.14
    Other      : AA.AA
  Has 2 paired device(s) out of a maximum of 6.
  Notifications: wireless, software present (0x000900)
  Device activity counters: 1=162, 2=161

  1: Wireless Illuminated Keyboard K800
     Codename     : K800
     Kind         : keyboard
     Wireless PID : 2010
     Protocol     : HID++ 1.0
     Polling rate : 20 ms (50Hz)
     Serial number: EEFFDDEE
          Firmware: 22.01.B0019
        Bootloader: 02.01
             Other: 00.07
     The power switch is located on the top right corner.
     Notifications: battery status (0x100000).
     Battery: full, discharging.
[...]

@kgorol
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kgorol commented Nov 1, 2019

Well I updated the firmware, yet nothing changed.

fwupdmgr get-devices output:

├─Unifying Receiver:
│     Device ID:           e1aefeab74482e663f7466439b480d4a31994d7b
│     Summary:             A miniaturised USB wireless receiver
│     Current version:     RQR24.11_B0036
│     Bootloader Version:  BOT03.02_B0009
│     Vendor:              Logitech (USB:0x046D)
│     Install Duration:    30 seconds
│     Flags:               updatable|supported|registered
│     GUIDs:               cc4cbfa9-bf9d-540b-b92b-172ce31013c1
│                          279ed287-3607-549e-bacc-f873bb9838c4
│                          15a5fe7c-dfb3-56e1-acec-a014eec38d83

solaar show output:

Unifying Receiver
  Device path  : /dev/hidraw0
  USB id       : 046d:c52b
  Serial       : DC279AB2
    Firmware   : 24.11.B0036
    Bootloader : 02.09
    Other      : AA.AC
  Has 2 paired device(s) out of a maximum of 6.
  Notifications: wireless, software present (0x000900)
  Device activity counters: 1=170, 2=115

  1: Wireless Mouse MX Master 2S
     Codename     : MX Master 2S
     Kind         : mouse
     Wireless PID : 4069
     Protocol     : HID++ 4.5
     Polling rate : 8 ms (125Hz)
     Serial number: A6A40064
        Bootloader: BOT 56.10.B0005
          Firmware: MPM 12.10.B0005
          Firmware: MPM 12.10.B0005
             Other: 
     The power switch is located on the base.
     Supports 32 HID++ 2.0 features:
         0: ROOT                   {0000}   
         1: FEATURE SET            {0001}   
         2: DEVICE FW VERSION      {0003}   
         3: DEVICE NAME            {0005}   
         4: WIRELESS DEVICE STATUS {1D4B}   
         5: RESET                  {0020}   
         6: unknown:0021           {0021}   
         7: BATTERY STATUS         {1000}   
         8: unknown:1806           {1806}   internal, hidden
         9: CHANGE HOST            {1814}   
        10: REPROG CONTROLS V4     {1B04}   
        11: ADJUSTABLE DPI         {2201}   
        12: VERTICAL SCROLLING     {2100}   
            Roller type: 3G
            Ratchet per turn: 24
            Scroll lines: 0
        13: SMART SHIFT            {2110}   
        14: HIRES WHEEL            {2121}   
            Multiplier: 8
            Has invert
              Normal wheel motion
            Has ratchet switch
              Normal wheel mode
            High resolution mode
            HID notification
        15: GESTURE 2              {6501}   
        16: unknown:00C2           {00C2}   
        17: unknown:1813           {1813}   internal, hidden
        18: unknown:1830           {1830}   internal, hidden
        19: unknown:1890           {1890}   internal, hidden
        20: unknown:1891           {1891}   internal, hidden
        21: unknown:18A1           {18A1}   internal, hidden
        22: unknown:18C0           {18C0}   internal, hidden
        23: unknown:1DF3           {1DF3}   internal, hidden
        24: unknown:1E00           {1E00}   hidden
        25: unknown:1EB0           {1EB0}   internal, hidden
        26: unknown:1803           {1803}   internal, hidden
        27: unknown:1861           {1861}   internal, hidden
        28: unknown:9001           {9001}   internal, hidden
        29: unknown:9200           {9200}   internal, hidden
        30: unknown:9202           {9202}   internal, hidden
        31: unknown:1805           {1805}   internal, hidden
     Has 8 reprogrammable keys:
         0: LEFT CLICK                , default: LeftClick                   => LEFT CLICK                
             mse, pos:0, group:1, gmask:1
         1: RIGHT CLICK               , default: RightClick                  => RIGHT CLICK               
             mse, pos:0, group:1, gmask:1
         2: MIDDLE BUTTON             , default: MiddleMouseButton           => MIDDLE BUTTON             
             mse, reprogrammable, divertable, pos:0, group:3, gmask:7
         3: BACK AS BUTTON 4          , default: BackEx                      => BACK AS BUTTON 4          
             mse, reprogrammable, divertable, pos:0, group:2, gmask:3
         4: FORWARD AS BUTTON 5       , default: BrowserForwardEx            => FORWARD AS BUTTON 5       
             mse, reprogrammable, divertable, pos:0, group:2, gmask:3
         5: unknown:00C3              , default: unknown:00A9                => unknown:00C3              
             mse, reprogrammable, divertable, pos:0, group:3, gmask:7
         6: unknown:00C4              , default: unknown:009D                => unknown:00C4              
             mse, reprogrammable, divertable, pos:0, group:3, gmask:7
         7: unknown:00D7              , default: unknown:00B4                => unknown:00D7              
             divertable, virtual, pos:0, group:4, gmask:0
     Battery: 90%, discharging.

  2: Wireless Illuminated Keyboard K800
     Codename     : K800
     Kind         : keyboard
     Wireless PID : 406E
     Protocol     : HID++ 4.5
     Polling rate : 20 ms (50Hz)
     Serial number: 636E1413
     The power switch is located on the top right corner.
     Battery status unavailable.

@doctor64
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@kgorol Please, can you provide output of 'solaar -dd show' ?
Are you sure you using latest version of solaar?

@kgorol
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kgorol commented Nov 15, 2019

@doctor64 of course, there is log from both commands https://gist.github.com/kgorol/d06fed7c5f6c60c25ac727e98a385615

As you see in log I am using version 1.0.1

@doctor64
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@kgorol It's really strange. Please, can you, just for test, unpair mouse from receiver, and perform solaar -dd show with only keyboard? I not see commands exchange with keyboard. May be keyboard is switched off?

@doctor64
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@kgorol Just noticed - look's like Logitech continue to re-use model numbers. Your K800 have Wireless PID 406E and protocol HID++ 4.5 accordingly to your logs, but @rathann K800 and definition in solaar sources have wpid 2010 and protocol 1.0. We can try to modify sources to add support, but I need your help because I don't have access to hardware.

@kgorol
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kgorol commented Nov 16, 2019

@doctor64 below is the output after unpairing the mouse :)

[kamil@kamil-pc ~]$ solaar -dd show
09:11:45,448    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B5 030000]
09:11:45,453    DEBUG [MainThread] logitech_receiver.base: (3) => r[11 FF 83B5 03DC279AB20106080000000000000000]
09:11:45,454    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 80B2 000000]
09:11:45,465    DEBUG [MainThread] logitech_receiver.base: (3) => r[20 02 4101 6E401A4000000400000000]
09:11:45,466    DEBUG [MainThread] logitech_receiver.base: (3) => r[20 00 4102 0000000000000000000000]
09:11:45,466    DEBUG [MainThread] logitech_receiver.base: (3) => r[20 02 0100 0000000000000000000000]
09:11:45,466    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 8F80 B20300]
09:11:45,466    DEBUG [MainThread] logitech_receiver.base: (3) device 0xFF error on request {80B2}: 3 = invalid value
09:11:45,466    DEBUG [MainThread] solaar.cli: [/dev/hidraw0] => <UnifyingReceiver(/dev/hidraw0,3)>
09:11:45,546    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 8102 000000]
09:11:45,551    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 8102 000100]
Unifying Receiver
  Device path  : /dev/hidraw0
  USB id       : 046d:c52b
  Serial       : DC279AB2
09:11:45,552    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 81F1 010000]
09:11:45,557    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 81F1 012411]
09:11:45,558    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 81F1 020000]
09:11:45,563    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 81F1 020036]
09:11:45,564    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 81F1 040000]
09:11:45,569    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 81F1 040209]
09:11:45,570    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 81F1 030000]
09:11:45,576    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 81F1 03AAAC]
    Firmware   : 24.11.B0036
    Bootloader : 02.09
    Other      : AA.AC
  Has 1 paired device(s) out of a maximum of 6.
09:11:45,576    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 8100 000000]
09:11:45,582    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 8100 000900]
  Notifications: wireless, software present (0x000900)
09:11:45,582    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B3 000000]
09:11:45,587    DEBUG [MainThread] logitech_receiver.base: (3) => r[11 FF 83B3 00930000000000000000000000000000]
  Device activity counters: 2=147
09:11:45,588    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 8102 000000]
09:11:45,593    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 8102 000100]
09:11:45,594    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B5 200000]
09:11:45,600    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 8F83 B50300]
09:11:45,600    DEBUG [MainThread] logitech_receiver.base: (3) device 0xFF error on request {83B5}: 3 = invalid value
09:11:45,600    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B5 040000]
09:11:45,606    DEBUG [MainThread] logitech_receiver.base: (3) => r[10 FF 8F83 B50300]
09:11:45,606    DEBUG [MainThread] logitech_receiver.base: (3) device 0xFF error on request {83B5}: 3 = invalid value
09:11:45,606    ERROR [MainThread] logitech_receiver.receiver: failed to read Nano wpid for device 1 of <UnifyingReceiver(/dev/hidraw0,3)>
09:11:45,606    ERROR [MainThread] logitech_receiver.receiver: register_new_device
Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/logitech_receiver/receiver.py", line 415, in register_new_device
    dev = PairedDevice(self, number, notification)
  File "/usr/lib/python3.7/site-packages/logitech_receiver/receiver.py", line 103, in __init__
    raise _base.NoSuchDevice(number=number, receiver=receiver, error="read Nano wpid")
logitech_receiver.base.NoSuchDevice: {'number': 1, 'receiver': <UnifyingReceiver(/dev/hidraw0,3)>, 'error': 'read Nano wpid'}
09:11:45,607  WARNING [MainThread] logitech_receiver.receiver: <UnifyingReceiver(/dev/hidraw0,3)>: looked for device 1, not found
09:11:45,607    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B5 210000]
09:11:45,613    DEBUG [MainThread] logitech_receiver.base: (3) => r[11 FF 83B5 210814406E0402010700000000000000]
09:11:45,613    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B5 410000]
09:11:45,618    DEBUG [MainThread] logitech_receiver.base: (3) => r[11 FF 83B5 41044B38303000000000000000000000]
09:11:45,619     INFO [MainThread] logitech_receiver.receiver: <UnifyingReceiver(/dev/hidraw0,3)>: found new device 2 (406E)

09:11:45,619    DEBUG [MainThread] logitech_receiver.base: (3) pinging device 2
09:11:45,619    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 02 001C 0000F9]
09:11:45,675    DEBUG [MainThread] logitech_receiver.base: (3) => r[11 02 001C 0405F900000000000000000000000000]
  2: Wireless Illuminated Keyboard K800
     Codename     : K800
     Kind         : keyboard
     Wireless PID : 406E
     Protocol     : HID++ 4.5
     Polling rate : 20 ms (50Hz)
09:11:45,675    DEBUG [MainThread] logitech_receiver.base: (3) <= w[10 FF 83B5 310000]
09:11:45,681    DEBUG [MainThread] logitech_receiver.base: (3) => r[11 FF 83B5 31636E14131A40000007000000000000]
     Serial number: 636E1413
     The power switch is located on the top right corner.
     Battery status unavailable.

Of course I will try to help as much as I can.

@doctor64
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doctor64 commented Nov 17, 2019

@kgorol Can you locate your Solaar installation and modify file lib/logitech_receiver/descriptors.py and add somewhere near keyboards definitions section for new keyboard?

_D('Wireless Illuminated Keyboard K800 new', protocol=4.5, wpid='406E',
				settings=[
						],
				)

Or, if you prefer, just check out updated version from my github fork - create directory somewhere and execute

git clone https://github.com/doctor64/Solaar.git
git checkout k800-new

Stop running Solaar Gui if present, and execute from checked out directory bin/solaar -dd show
Lets see whats happened :)

@kgorol
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kgorol commented Nov 18, 2019

@doctor64 guess your changes are working :)

https://gist.github.com/kgorol/e366a4058dd0897b5108645433d2e80b

@doctor64
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@kgorol Excellent! I already fixed code name output, now in should be "K800 new".
Can you please test if any configuration options like FN inversion available and working both from CLI and GUI?
Also I see two buttons is Unknowns, but anyway currently it's mostly cosmetics.

@kgorol
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kgorol commented Nov 19, 2019

@doctor64
This is how it looks in GUI when I run Solaar from your build:

image

@doctor64
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@kgorol Do you test Swap Fx function? Does it works? Never used it but expect what it should do something like Fn lock, so F1-F12 keys will work as multimedia keys. You can test it using evtest tool.

@rathann
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rathann commented Nov 20, 2019

@doctor64 Can you open a PR once the code is ready to commit?

@doctor64
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@rathann Of course, I just wish to be sure what auto-detected features works and add features to descriptors.py file.

@kgorol
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kgorol commented Nov 20, 2019

@doctor64 swap fx function works as you described.

@doctor64
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doctor64 commented Dec 2, 2019

@kgorol Can you please test latest version from my repo what your keyboard working and report battery status and swap fx function work? Last changes are trivial, but i wish to be 100% sure i not broke something.

@kgorol
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kgorol commented Dec 4, 2019

@doctor64 everything works as in previous version.

@Rorschach1010
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Rorschach1010 commented Jan 3, 2020

Hi, I just wanted to say that I have the exact same issue with the same PID and HID as kgorol. I didn't try your workaround but it would probably work I guess.
However, I tried the git version from AUR on Arch Linux and it didn't work. Probably it isn't building from the latest Git.
In any way, I'm happy to see that it will get fixed eventually so I'll just wait for the update :)

@johol
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johol commented Jan 4, 2020

Hi,
changing the line
_D('Wireless Illuminated Keyboard K800', protocol=1.0, wpid='2010',
in descriptors.py to
_D('Wireless Illuminated Keyboard k800', protocol=1.0, wpid='406e'
makes my keyboard working. Please note the k800 in lower case.

@Rorschach1010
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Hi,
changing the line
_D('Wireless Illuminated Keyboard K800', protocol=1.0, wpid='2010',
in descriptors.py to
_D('Wireless Illuminated Keyboard k800', protocol=1.0, wpid='406e'
makes my keyboard working. Please note the k800 in lower case.

I just did it too (just because I can, lol). It works but it would be cool if it could be fixed officially so that it can be updated via distro repo.

@dfht684
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dfht684 commented Jan 7, 2020

I also have this issue from time to time on my K750 - where the battery percentage is not available. I don't have it with me, currently, to verify if it's the same issue with the wrong reference PID. Curious where testing stalled out since it looked like a pull was nearly ready to be sent?

@doctor64
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doctor64 commented Jan 8, 2020

@dfht684 I doubt what your problem with K750 related to this. WPID is fixed thing, it's a id of hardware, so I'm don't thing it can change from time to time. Please, if you have this problem, open separate issue and provide logs (output of solaar -dd show).
I'm very sorry for delaying a PR - i have health problems, and it's little difficult to commit from hospital :)

@dfht684
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dfht684 commented Jan 8, 2020

No worries @doctor64 , I was more curious (not demanding) if the fix you supplied to kgorol would help with my issue. I only thought it might be the same as the symptoms sound the same. It could also just be some hardware thing since I find that the battery/connection wipes when I turn off my K750. But, if it's the same root cause, then a release will help me too!

@Rorschach1010
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Take your time with it @doctor64. You provided us with a workaround so for the time being, its no big deal.
@everyone using the workaround, are you guys able to activate/deactivate the hand sensor for the keyboard lights? Before I used the workaround, the option was there but greyed-out so I wasn't able to deactivate it. Now the option isn't even there anymore. So I'm just curious if this ever worked for anyone?

@doctor64
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doctor64 commented Jan 8, 2020

@Rorschach1010 Thank you.
Sorry, i don't have K800 hardware, so can't check by himself, but looking to source i can provide some explanation.
Old variant of K800 was a HID++ 1.0 device, and use registers to control various features. This functionality was implemented in Solaar, so i'm think it was shown in GUI but disabled because new K800 is a HID++ 2.0 device and use features to enable additional functionality.
Looking into logs i see promising feature 7: unknown:1983 which have a name BACKLIGHT3, so, possibly it control keyboard backlight. But currently support for this feature not implemented in Solaar, so GUI after start properly recognize new variant of K800 does'nt show anything. Unfortunately, we don't have documentation for this feature and trying to reverse engineering protocol looking into exchange between keyboard and windows driver require access to keyboard :)
We can try to request documentation from Logitech, as described in issue #582

@Rorschach1010
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@Rorschach1010 Thank you.
Sorry, i don't have K800 hardware, so can't check by himself, but looking to source i can provide some explanation.
Old variant of K800 was a HID++ 1.0 device, and use registers to control various features. This functionality was implemented in Solaar, so i'm think it was shown in GUI but disabled because new K800 is a HID++ 2.0 device and use features to enable additional functionality.
Looking into logs i see promising feature 7: unknown:1983 which have a name BACKLIGHT3, so, possibly it control keyboard backlight. But currently support for this feature not implemented in Solaar, so GUI after start properly recognize new variant of K800 does'nt show anything. Unfortunately, we don't have documentation for this feature and trying to reverse engineering protocol looking into exchange between keyboard and windows driver require access to keyboard :)
We can try to request documentation from Logitech, as described in issue #582

Thanks for your reply @doctor64. I understand now. Not sure how helpful Logitech is with things like this and its not really that important (to me) but we can certainly request it if there is more demand for it.

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