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Use HID consumer key (etc.. volume+, play / pause ) in HTC android 4.4 or IOS7.0 not working

Mars Chen
Prodigy 210 points
Other Parts Discussed in Thread: CC2541

Hi~

I used HIDEmuKbd (1.3.2 version) project,

Test HID consumer key (etc.. volume+, play / pause ) then can work properly on WIN8 and IOS7.1 and Android 4.4 (Sony cell phone) system.

But then can't in HTC android 4.4 or IOS7.0 working, In this case, Just only normal key (Usage Page 0x07, ect.. A B C D) can be used.

Mouse function have same problem (in HTC android 4.4 system).

Our customers provide Nodic (nRF51822) product, No this problem.

Maybe they different in that HID descriptor, But i don't have idea to modify it.

So ~ how can i modify firmware let consumer key to be useful.

note: In this case we don't used any APP for test, Just device with OS connect test.

  • 0
    TI__Mastermind 23440 points

    Hi Mars,

    I can reproduce your problem. It seems from the sniffer log that my 4.4.2 Nexus 7 doesn't enable notifications for the consumer control reports.

    Are you able to check what the report map looks like for the working device?

    Using e.g. BTool you can do
    - Connect
    - Advanced commands
    -- ATT -> FindInfoReq (populates the attribute table at the bottom)
    -- GAP -> Authenticate
    -- Find Report Map in the attribute list, then double click.
    -- Click Read on the dialog that pops up for report map, then copy and paste the result here.

    You can also go to http://www.frank-zhao.com/usb_desc_req_parser/ and see what those bytes mean.

    Best regards,
    Aslak

  • 0 in reply to Aslak N.
    Prodigy 210 points

    Hi~

    BT tool first use, I get  "Report map" information (In Advanced commands)

    // Consumer & Normal Key Can Work (HID descriptor, in HTC android 4.4)

0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
0x09, 0x06,        // Usage (Keyboard)
0xA1, 0x01,        // Collection (Physical)
0x85, 0x01,        //   Report ID (1)

// modify key	//
0x05, 0x07,        //   Usage Page (Kbrd/Keypad)
0x19, 0xE0,        //   Usage Minimum (0xE0)
0x29, 0xE7,        //   Usage Maximum (0xE7)
0x15, 0x00,        //   Logical Minimum (0)
0x25, 0x01,        //   Logical Maximum (1)
0x75, 0x01,        //   Report Size (1)
0x95, 0x08,        //   Report Count (8)
0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x01,        //   Report Count (1)
0x75, 0x08,        //   Report Size (8)
0x81, 0x01,        //   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x05,        //   Report Count (5)
0x75, 0x01,        //   Report Size (1)

// Led	//
0x05, 0x08,        //   Usage Page (LEDs)
0x19, 0x01,        //   Usage Minimum (Num Lock)
0x29, 0x05,        //   Usage Maximum (Kana)
0x91, 0x02,        //   Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x95, 0x01,        //   Report Count (1)
0x75, 0x03,        //   Report Size (3)
0x91, 0x01,        //   Output (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x95, 0x06,        //   Report Count (6)
0x75, 0x08,        //   Report Size (8)
0x15, 0x00,        //   Logical Minimum (0)
0x25, 0x65,        //   Logical Maximum (101)

// normal key	//
0x05, 0x07,        //   Usage Page (Kbrd/Keypad)
0x19, 0x00,        //   Usage Minimum (0x00)
0x29, 0x65,        //   Usage Maximum (0x65)
0x81, 0x00,        //   Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x05,        //   Usage (0x05)
0x15, 0x00,        //   Logical Minimum (0)
0x26, 0xFF, 0x00,  //   Logical Maximum (255)
0x75, 0x08,        //   Report Size (8)
0x95, 0x02,        //   Report Count (2)
0xB1, 0x02,        //   Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0xC0,              // End Collection

// consumer key	//
0x05, 0x0C,        // Usage Page (Consumer)
0x09, 0x01,        // Usage (Consumer Control)
0xA1, 0x01,        // Collection (Physical)
0x85, 0x02,        //   Report ID (2)
0x15, 0x00,        //   Logical Minimum (0)
0x25, 0x01,        //   Logical Maximum (1)
0x75, 0x01,        //   Report Size (1)
0x95, 0x01,        //   Report Count (1)
0x09, 0xE2,        //   Usage (Mute)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x0A, 0x83, 0x01,  //   Usage (AL Consumer Control Configuration)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xB5,        //   Usage (Scan Next Track)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xB6,        //   Usage (Scan Previous Track)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xEA,        //   Usage (Volume Decrement)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xE9,        //   Usage (Volume Increment)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x0A, 0x25, 0x02,  //   Usage (AC Forward)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x0A, 0x24, 0x02,  //   Usage (AC Back)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0xC0,              // End Collection

    //---------------------------------------------------------------------------------------------//

    // Mouse Cursor Can Work (HID descriptor, In HTC android 4.4)
// Consumer Can't Work 

0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
0x09, 0x02,        // Usage (Mouse)
0xA1, 0x01,        // Collection (Physical)
0x85, 0x01,        //   Report ID (1)
0x09, 0x01,        //   Usage (Pointer)
0xA1, 0x00,        //   Collection (Undefined)
0x95, 0x05,        //     Report Count (5)
0x75, 0x01,        //     Report Size (1)

0x05, 0x09,        //     Usage Page (Button)
0x19, 0x01,        //     Usage Minimum (0x01)
0x29, 0x05,        //     Usage Maximum (0x05)
0x15, 0x00,        //     Logical Minimum (0)
0x25, 0x01,        //     Logical Maximum (1)
0x81, 0x02,        //     Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x01,        //     Report Count (1)
0x75, 0x03,        //     Report Size (3)
0x81, 0x01,        //     Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x75, 0x08,        //     Report Size (8)
0x95, 0x01,        //     Report Count (1)
0x05, 0x01,        //     Usage Page (Generic Desktop Ctrls)

0x09, 0x38,        //     Usage (Wheel)
0x15, 0x81,        //     Logical Minimum (129)
0x25, 0x7F,        //     Logical Maximum (127)
0x81, 0x06,        //     Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x0C,        //     Usage Page (Consumer)

0x0A, 0x38, 0x02,  //     Usage (AC Pan)
0x95, 0x01,        //     Report Count (1)
0x81, 0x06,        //     Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0xC0,              //   End Collection

0x85, 0x02,        //   Report ID (2)
0x09, 0x01,        //   Usage (Consumer Control)
0xA1, 0x00,        //   Collection (Undefined)
0x75, 0x0C,        //     Report Size (12)
0x95, 0x02,        //     Report Count (2)
0x05, 0x01,        //     Usage Page (Generic Desktop Ctrls)
0x09, 0x30,        //     Usage (X)
0x09, 0x31,        //     Usage (Y)
0x16, 0x01, 0xF8,  //     Logical Minimum (63489)
0x26, 0xFF, 0x07,  //     Logical Maximum (2047)
0x81, 0x06,        //     Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0xC0,              //   End Collection
0xC0,              // End Collection

0x05, 0x0C,        // Usage Page (Consumer)
0x09, 0x01,        // Usage (Consumer Control)
0xA1, 0x01,        // Collection (Physical)
0x85, 0x03,        //   Report ID (3)
0x15, 0x00,        //   Logical Minimum (0)
0x25, 0x01,        //   Logical Maximum (1)
0x75, 0x01,        //   Report Size (1)
0x95, 0x01,        //   Report Count (1)
0x09, 0xCD,        //   Usage (Play/Pause)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x0A, 0x83, 0x01,  //   Usage (AL Consumer Control Configuration)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xB5,        //   Usage (Scan Next Track)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xB6,        //   Usage (Scan Previous Track)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xEA,        //   Usage (Volume Decrement)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0xE9,        //   Usage (Volume Increment)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x0A, 0x25, 0x02,  //   Usage (AC Forward)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0x0A, 0x24, 0x02,  //   Usage (AC Back)
0x81, 0x06,        //   Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0xC0,              // End Collection

  • 0 in reply to Mars Chen
    TI__Mastermind 23440 points

    Hi Mars,

    I wasn't able to get Nexus 7 to operate the CC keys with the one you say is working either. I will have to refer this to some colleagues who know more about the HID stuff.

    BR,
    Aslak

  • 0 in reply to Aslak N.
    Prodigy 210 points

    Hi Aslak,

    Thanks for your reply.

    Maybe consumer key can't operate on Android 4.4.2 (some cell phone) not about HID descriptor different.

    I tried used this HID report from BTool, does not working on HTC new one (Only CC Key & Mouse function).

  • 0 in reply to Mars Chen
    Intellectual 685 points

    Hi Mars ,

    what changes you made in HIDEmukbd project to work for media consumer keys(like play/pause , volume up/down) . I ma testing same thing on ios7 but it didn't work .

    thanks in advance

  • 0 in reply to Kadari Rajamallaiah
    TI__Expert 6995 points

    Hi Kadari, 

    Those buttons are supported by default in iOS7. Have you looked at this design?

    http://www.ti.com/tool/cc2541arc-rd

    Peder

  • 0 in reply to Peder
    Intellectual 685 points

    I already referred " cc2541 Advanced Remote Control Quick Start Guide" this doc completely tell about how to implement Keyboard , Mouse and Consumer keys with advance remote according to this doc I tried to implement keyboard and consumer keys on " Sensortag  " device I succeed to implement keyboard but when it comes to consumer keys it's not functioning as per code .

     

    I am using cc2541 Sensortag and ios7 version ipod touch . can you tell how to resolve this issue

    Thanks in Advance

     

  • 0 in reply to Kadari Rajamallaiah
    TI__Expert 6505 points

    Hi,

    Looks like Android has fixed this issue(Host not enabling notification for consumer reports) on v4.4.4. Can you check on a device supporting v4.4.4?

    Regards,

    Arun