[LAU] Two exact same drumpads, different USB ID's
Jeremy Jongepier
jeremy at autostatic.com
Sat Mar 9 20:35:34 UTC 2013
Attached the output of lsusb -vvv of both devices. hid-device.txt is the
output of the drum pad that gets recognized as a USB hid device and
midi-device.txt is the output of the pad that gets recognized as a USB
midi device.
Regards,
Jeremy
On 03/03/2013 01:26 PM, Jeremy Jongepier wrote:
> Dear all,
>
> I got two cheap drumpads here that are _exactly_ the same, also on the
> inside (PCB's have the same revision ID):
> http://dx.com/p/portable-roll-up-usb-drum-kit-118841
> But they get recognized differently, one as an USB MIDI device and the
> other as an USB HID device. And when it gets recognized as a HID device
> it's pretty useless because I can't hook it up easily to software that
> accepts MIDI input.
>
> This is the "working" drumpad (the one that gets recognized as an USB
> MIDI device):
> /var/log/syslog:
> Mar 3 13:09:40 piertje kernel: [ 864.820341] usb 5-2: new full-speed
> USB device number 2 using uhci_hcd
> Mar 3 13:09:40 piertje mtp-probe: checking bus 5, device 2:
> "/sys/devices/pci0000:00/0000:00:1d.0/usb5/5-2"
> Mar 3 13:09:40 piertje mtp-probe: bus: 5, device: 2 was not an MTP device
> Mar 3 13:09:40 piertje kernel: [ 865.123664] usbcore: registered new
> interface driver snd-usb-audio
> Mar 3 13:09:40 piertje pulseaudio[2044]: [pulseaudio]
> module-alsa-card.c: Failed to find a working profile.
> Mar 3 13:09:40 piertje pulseaudio[2044]: [pulseaudio] module.c: Failed
> to load module "module-alsa-card" (argument: "device_id="1"
> name="usb-UTECK_MIDI_DRUM-00-DRUM"
> card_name="alsa_card.usb-UTECK_MIDI_DRUM-00-DRUM" namereg_fail=false
> tsched=yes ignore_dB=no deferred_volume=yes
> card_properties="module-udev-detect.discovered=1""): initialization failed.
>
> lsusb:
> Bus 005 Device 002: ID 0218:0001 Hangzhou Worlde
>
> This is the non working drumpad:
> /var/log/syslog:
> Mar 2 20:49:45 piertje kernel: [ 3040.388297] usb 5-1: new full-speed
> USB device number 7 using uhci_hcd
> Mar 2 20:49:45 piertje mtp-probe: checking bus 5, device 7:
> "/sys/devices/pci0000:00/0000:00:1d.0/usb5/5-1"
> Mar 2 20:49:45 piertje mtp-probe: bus: 5, device: 7 was not an MTP device
> Mar 2 20:49:45 piertje kernel: [ 3040.602562] generic-usb
> 0003:1941:8021.0001: hiddev0,hidraw0: USB HID v1.10 Device
> [HID 1941:8021] on usb-0000:00:1d.0-1/input0
>
> lsusb:
> Bus 005 Device 005: ID 1941:8021 Dream Link WH1080 Weather Station / USB
> Missile Launcher
>
> So my questions are, why does this happen? The PCB is extremely simple
> and only has one small IC. Is the USB ID determined by this IC? And the
> big question, can I trick this non working pad to get recognized as a
> valid USB MIDI device? I already looked into this (unbinding, binding,
> new_id) but can't get it to work. And I'm 100% sure these pads are
> exactly the same.
> I could use this: https://code.google.com/p/drumroll/
> But I get the idea this is not necessary. drumroll also already consumes
> 4% CPU on my notebook and I want to use this drumpad with my Raspberry
> Pi, besides, it's extra overhead and only runs SUID.
> So anybody any idea how I could trick my system in properly recognizing
> this non working drumpad? I don't mind hacking kernel modules if that
> would be necessary.
>
> Thanks in advance,
>
> Jeremy
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user at lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-user
-------------- next part --------------
Bus 005 Device 003: ID 1941:8021 Dream Link WH1080 Weather Station / USB Missile Launcher
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1941 Dream Link
idProduct 0x8021 WH1080 Weather Station / USB Missile Launcher
bcdDevice 1.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
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 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 52
Report Descriptor: (length is 52)
Item(Global): Usage Page, data= [ 0xa0 0xff ] 65440
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Local ): Usage, data= [ 0x02 ] 2
(null)
Item(Main ): Collection, data= [ 0x00 ] 0
Physical
Item(Global): Usage Page, data= [ 0xa1 0xff ] 65441
(null)
Item(Local ): Usage, data= [ 0x03 ] 3
(null)
Item(Local ): Usage, data= [ 0x04 ] 4
(null)
Item(Global): Logical Minimum, data= [ 0x80 ] 128
Item(Global): Logical Maximum, data= [ 0x7f ] 127
Item(Global): Physical Minimum, data= [ 0x00 ] 0
Item(Global): Physical Maximum, data= [ 0xff ] 255
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x08 ] 8
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x05 ] 5
(null)
Item(Local ): Usage, data= [ 0x06 ] 6
(null)
Item(Global): Logical Minimum, data= [ 0x80 ] 128
Item(Global): Logical Maximum, data= [ 0x7f ] 127
Item(Global): Physical Minimum, data= [ 0x00 ] 0
Item(Global): Physical Maximum, data= [ 0xff ] 255
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x08 ] 8
Item(Main ): Output, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Main ): End Collection, data=none
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 10
Device Status: 0x0005
Self Powered
Test Mode
-------------- next part --------------
Bus 005 Device 002: ID 0218:0001 Hangzhou Worlde
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0218 Hangzhou Worlde
idProduct 0x0001
bcdDevice 1.00
iManufacturer 1 UTECK
iProduct 2 MIDI DRUM
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 101
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 9
bInCollection 1
baInterfaceNr( 0) 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 3 MIDI Streaming
bInterfaceProtocol 0
iInterface 0
MIDIStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 65
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 0
iJack 0
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 2
bNrInputPins 1
baSourceID( 0) 1
BaSourcePin( 0) 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 3
bNrInputPins 1
baSourceID( 0) 0
BaSourcePin( 0) 1
iJack 0
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 2
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 0
Device Status: 0x0005
Self Powered
Test Mode
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