USBH_MIDI
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YuuichiAkagawa
M-Audio Keystation 49 MK3 recognized but no MIDI events received
This MIDI keyboard model is class compliant and seems to be recognized, but no MIDI events are received at all.
Here is the USB_MIDI_dump with #define DEBUG_USB_HOST :
MIDI Init
Addr:01
VID:0763 PID:3110 #Conf:01
Conf:01 Int:00 Alt:00 EPs:00 IntCl:01 IntSubCl:01
No MIDI Device
Conf:01 Int:01 Alt:00 EPs:02 IntCl:01 IntSubCl:03
MIDI Device
-EPAddr:81 bmAttr:02 MaxPktSz:40
Endpoint descriptor:
Length: 09
Type: 05
Address: 81
Attributes: 02
MaxPktSize: 0040
Poll Intrv: 00
-EPAddr:02 bmAttr:02 MaxPktSz:40
Endpoint descriptor:
Length: 09
Type: 05
Address: 02
Attributes: 02
MaxPktSize: 0040
Poll Intrv: 00
NumEP:03
Conf:01
EPin :81
EPout:02
Init done.
VID:0763, PID:3110
Tried all of the keys, wheels, fader and buttons, but nothing appears on the dump after this point.
USBH_MIDI_desc output:
VID:0763, PID:3110
Start
01
--
Device descriptor:
Descriptor Length: 12
Descriptor type: 01
USB version: 0110
Device class: 00
Device Subclass: 00
Device Protocol: 00
Max.packet size: 08
Vendor ID: 0763
Product ID: 3110
Revision ID: 0105
Mfg.string index: 01
Prod.string index: 02
Serial number index: 00
Number of conf.: 01
Configuration descriptor:
Total length: 0085
Num.intf: 02
Conf.value: 01
Conf.string: 00
Attr.: C0
Max.pwr: 32
Interface descriptor:
Intf.number: 00
Alt.: 00
Endpoints: 00
Intf. Class: 01
Intf. Subclass: 01
Intf. Protocol: 00
Intf.string: 00
<<<AUDIO_CONTROL>>>
Unknown descriptor:
Length: 09
Type: 24
Contents: 01000109000101
Interface descriptor:
Intf.number: 01
Alt.: 00
Endpoints: 02
Intf. Class: 01
Intf. Subclass: 03
Intf. Protocol: 00
Intf.string: 00
<<<MIDIStreaming>>>
MS Interface descriptor
07240100016100
DescriptorSubtype: 01
USB_DESCRIPTOR_CS_INTERFACE : MS_HEADER
MIDIStreaming SubClass Specification Release number: 0100
wTotalLength: 0061
MS Interface descriptor
06240201010E
DescriptorSubtype: 02
USB_DESCRIPTOR_CS_INTERFACE : MIDI_IN_JACK(Embedded)
JackType: 01
JackID: 01
MS Interface descriptor
062402020200
DescriptorSubtype: 02
USB_DESCRIPTOR_CS_INTERFACE : MIDI_IN_JACK(External)
JackType: 02
JackID: 02
MS Interface descriptor
06240201030F
DescriptorSubtype: 02
USB_DESCRIPTOR_CS_INTERFACE : MIDI_IN_JACK(Embedded)
JackType: 01
JackID: 03
MS Interface descriptor
062402020400
DescriptorSubtype: 02
USB_DESCRIPTOR_CS_INTERFACE : MIDI_IN_JACK(External)
JackType: 02
JackID: 04
MS Interface descriptor
09240301090102010E
DescriptorSubtype: 03
USB_DESCRIPTOR_CS_INTERFACE : MIDI_OUT_JACK(Embedded)
JackType: 01
JackID: 09
NrInputPins: 01
02010E
MS Interface descriptor
092403020A01010100
DescriptorSubtype: 03
USB_DESCRIPTOR_CS_INTERFACE : MIDI_OUT_JACK(External)
JackType: 02
JackID: 0A
NrInputPins: 01
010100
MS Interface descriptor
092403010B0104010F
DescriptorSubtype: 03
USB_DESCRIPTOR_CS_INTERFACE : MIDI_OUT_JACK(Embedded)
JackType: 01
JackID: 0B
NrInputPins: 01
04010F
MS Interface descriptor
092403020C01030100
DescriptorSubtype: 03
USB_DESCRIPTOR_CS_INTERFACE : MIDI_OUT_JACK(External)
JackType: 02
JackID: 0C
NrInputPins: 01
030100
Endpoint descriptor:
Endpoint address: 81
Attr.: 02(Bulk)
Max.pkt size: 0040
Polling interval: 00
MS Endpoint descriptor
06250102090B
USB_DESCRIPTOR_CS_ENDPOINT : MS_GENERAL
bNumEmbMIDIJack: 02
090B
Endpoint descriptor:
Endpoint address: 02
Attr.: 02(Bulk)
Max.pkt size: 0040
Polling interval: 00
MS Endpoint descriptor
062501020103
USB_DESCRIPTOR_CS_ENDPOINT : MS_GENERAL
bNumEmbMIDIJack: 02
0103
Addr:1(0.0.1)
And the output of lsusb -vvv:
Bus 001 Device 057: ID 0763:3110 M-Audio
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0763 M-Audio
idProduct 0x3110
bcdDevice 1.05
iManufacturer 1 M-Audio
iProduct 2 Keystation 49 MK3
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0085
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self 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 0x0009
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 0x0061
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 1
iJack 14 Keystation 49 MK3(USB MIDI)
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 2
iJack 0
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 3
iJack 15 Keystation 49 MK3(Transport)
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 4
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 9
bNrInputPins 1
baSourceID( 0) 2
BaSourcePin( 0) 1
iJack 14 Keystation 49 MK3(USB MIDI)
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 10
bNrInputPins 1
baSourceID( 0) 1
BaSourcePin( 0) 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 11
bNrInputPins 1
baSourceID( 0) 4
BaSourcePin( 0) 1
iJack 15 Keystation 49 MK3(Transport)
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 12
bNrInputPins 1
baSourceID( 0) 3
BaSourcePin( 0) 1
iJack 0
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 6
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 2
baAssocJackID( 0) 9
baAssocJackID( 1) 11
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 6
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 2
baAssocJackID( 0) 1
baAssocJackID( 1) 3
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
Let me know if I can help get this keyboard model supported.
Do you have enough power ? Can you try connecting via a Powered USB hub?
Please check inTransfer() return value.
https://github.com/YuuichiAkagawa/USBH_MIDI/blob/808b5a1e65496cbd4daab4bebdcb841640c6e682/usbh_midi.cpp#L377-L379 ↓ insert #ifdef - #endif
uint8_t r = pUsb->inTransfer(bAddress, epInfo[epDataInIndex].epAddr, bytes_rcvd, dataptr);
#ifdef DEBUG_USB_HOST
if( r )
USBTRACE2("inTransfer():", r);
#endif
if( *bytes_rcvd < (MIDI_EVENT_PACKET_SIZE-4)){
Here's the dump with check in place:
[...]
NumEP:03
Conf:01
EPin :81
EPout:02
Init done.
VID:0763, PID:3110
inTransfer():04
inTransfer():04
inTransfer():04
inTransfer():04
inTransfer():04
inTransfer():04
Steady stream of inTransfer():04 continues after that. Pressing keys has no effect.
Also tested power draw with a meter, Arduino Pro Micro + USB Host board + Keystation MK3 only draw about 60 mA.
Hmmm The Keystation 49 MK3 responds to NAK, so USB communication is possible. But I don't understand why it doesn't send MIDI events.
Did a solution to this ever get found? I think I'm having the same problem with an Arturia Beatstep. Here's the output if I enable ENABLE_UHS_DEBUGGING and EXTRADEBUG:
`MIDI Init USBH_MIDI version 000600 Addr:01 VID:1C75 PID:0206 #Conf:01
STEP1: MIDI Start Interface descriptor: Inf#: 00 Alt: 00 EPs: 00 IntCl: 01 IntSubcl: 01 Protocol: 00 -MIDI not found
Interface descriptor:
Inf#: 01
Alt: 00
EPs: 02
IntCl: 01
IntSubcl: 03
Protocol: 00
+MIDI found
>Extracting endpoint
Endpoint descriptor:
Length: 09
Type: 05
Address: 02
Attributes: 02
MaxPktSize: 0040
Poll Intrv: 00
+valid EP found.
Extracting endpoint Endpoint descriptor: Length: 09 Type: 05 Address: 81 Attributes: 02 MaxPktSize: 0040 Poll Intrv: 00 +valid EP found. STEP1: MIDI,NumEP:03 Conf:01 EPin :81 EPout:02 VID:1C75, PID:0206 Init done. inTransfer():04 SendData():00003746 inTransfer():04 inTransfer():04 inTransfer():04 inTransfer():04 inTransfer():04 [...etc...] `
(ugh, the >'s break code formatting, but hopefully you get the gist!)
Try commenting out the following line in Usb.cpp. https://github.com/felis/USB_Host_Shield_2.0/blob/9184254b87b2c65378ba83d653457a48c01d5396/Usb.cpp#L241-L246
Like this.
rcode = dispatchPkt(tokIN, pep->epAddr, nak_limit); //IN packet to EP-'endpoint'. Function takes care of NAKS.
if(rcode == hrTOGERR) {
// yes, we flip it wrong here so that next time it is actually correct!
// pep->bmRcvToggle = (regRd(rHRSL) & bmRCVTOGRD) ? 0 : 1;
// regWr(rHCTL, (pep->bmRcvToggle) ? bmRCVTOG1 : bmRCVTOG0); //set toggle value
continue;
}
if(rcode) {
Try commenting out the following line in Usb.cpp. https://github.com/felis/USB_Host_Shield_2.0/blob/9184254b87b2c65378ba83d653457a48c01d5396/Usb.cpp#L241-L246
Success! Sending and receiving MIDI note on/offs now seems to work! Thank you! :D
Are there any drawbacks to this modification -- will this have a negative impact on the of other devices? (I've tested it with an Akai APCmini, and that seems to work, but maybe there is a case where it causes a problem?)
I note that although noteon/noteoff messages seems to work fine in both directions, that using MIDI.sendClock() to send clock to the Beatstep doesn't seem to work -- is this perhaps handled in a different function that needs to be similarly modified? I have also tested with an Arturia Keystep, and that DOES receive the MIDI clock OK. [Edit: actually, upon further testing, I'm finding the Beatstep behaving strangely in other ways too - and am starting to think this is to do with the Beatstep configuration itself. I'll explore some more with this over the weekend and see what I can figure out]
Sorry, I made a mistake in one place, please try again. Only two lines need to be commented out.
This problem is on the USB_Host_Shield_2.0 side, not the MIDI driver. https://github.com/felis/USB_Host_Shield_2.0/pull/438
2 . Do not flip toggle value on Toggle Error
Some devices have problems with the initial toggle, and BeatStep is one of them.
will this have a negative impact on the of other devices?
Usually there is no problem.
@doctea Sorry, I made a mistake in one place, please try again. Only two lines need to be commented out.
EDIT -- see below!
Thanks -- I've changed my copy of the library as you suggested here. It doesn't seem to make any difference that I can see, though. The Beatstep still doesn't respond to clock - was this meant to solve this problem? I've been through the settings in the Beatstep control app, hoping to find something like a 'MIDI clock mode' option, but had no such luck, so I don't know what else to try here..
This problem is on the USB_Host_Shield_2.0 side, not the MIDI driver. felis/USB_Host_Shield_2.0#438
Would it be better to solve this problem by applying that pull request to my copy of the USB_Host_Shield_2.0 library rather than commenting out the two lines you suggest?
Edit: so to answer my own confusion! I've applied the above pull request to the USB_Host_Shield_2.0 library (https://patch-diff.githubusercontent.com/raw/felis/USB_Host_Shield_2.0/pull/438.patch) and the Beatstep now seems to be receiving clock!
Steps to apply the patch for anyone who wants to replicate this:-
- cd libraries/USB_Host_Shield_2.0
- wget https://patch-diff.githubusercontent.com/raw/felis/USB_Host_Shield_2.0/pull/438.patch
- patch -p1 < 438.patch
The other part of the puzzle here was that the Beatstep needs to receive an external MIDI start message before it will be clocked externally!
@doctea I thought that the cause of not working in BeatStep might be the toggle problem and suggested commenting it out. During my research, I found a pull request for USB_Host_Shield_2.0 and introduced it to you. If this pull request fix solves the problem, then it should be adopted.
@doctea I thought that the cause of not working in BeatStep might be the toggle problem and suggested commenting it out. During my research, I found a pull request for USB_Host_Shield_2.0 and introduced it to you. If this pull request fix solves the problem, then it should be adopted.
Many thanks for your help, I understand now! Yes it seems to solve the problem and should be adopted :)
@Nephiel OK, I purchased Keystation for verification. I have confirmed that it works in two cases: with an external power supply connected to the Aruduino and through a powered USB hub.
Also tested power draw with a meter, Arduino Pro Micro + USB Host board + Keystation MK3 only draw about 60 mA.
Unfortunately, that is current consumption under stable conditions. This keyboard draws a large current when it is powered on.
I will say it again. You must connect via a powered USB hub.
I've wasted my money, you know. :sob: