This is with kernel 5.3.1 lowlatency from ubuntu
uname -a
Linux nick-beastie 5.3.1-050301*-lowlatency* #201909210632 SMP PREEMPT Sat
Sep 21 06:36:56 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
diff helix.txt hxstomp.txt
1c1
< Bus 009 Device 011: ID 0e41:424a Line6, Inc.
---
Bus 001 Device 014: ID 0e41:4246 Line6, Inc.
7c7
< bDeviceSubClass 2 ?
---
bDeviceSubClass 2
11c11
< idProduct 0x424a
---
idProduct 0x4246
14,15c14,15
< iProduct 2 HELIX
< iSerial 3 2744535
---
iProduct 3 HX Stomp
iSerial 2 3021888
20,21c20,21
< wTotalLength 304
< bNumInterfaces 6
---
wTotalLength 0x0117
bNumInterfaces 5
26c26
< MaxPower 100mA
---
MaxPower 0mA
36c36
< iInterface 4 Msg Pipe
---
iInterface 0
75c75
< iInterface 6 HELIX Audio
---
iInterface 0
83c83
< bmControl 0x00
---
bmControls 0x00
166c166
< AudioControl Endpoint Descriptor:
---
AudioStreaming Endpoint Descriptor:
223c223
< AudioControl Endpoint Descriptor:
---
AudioStreaming Endpoint Descriptor:
240c240
< iInterface 7 HELIX MIDI
---
iInterface 0
284c284
< bEndpointAddress 0x04 EP 4 OUT
---
bEndpointAddress 0x02 EP 2 OUT
302c302
< bEndpointAddress 0x84 EP 4 IN
---
bEndpointAddress 0x82 EP 2 IN
317,346d316
< Interface Descriptor:
< bLength 9
< bDescriptorType 4
< bInterfaceNumber 5
< 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 1.11
< bCountryCode 0 Not supported
< bNumDescriptors 1
< bDescriptorType 34 Report
< wDescriptorLength 37
< Report Descriptors:
< ** UNAVAILABLE **
< Endpoint Descriptor:
< bLength 7
< bDescriptorType 5
< bEndpointAddress 0x85 EP 5 IN
< bmAttributes 3
< Transfer Type Interrupt
< Synch Type None
< Usage Type Data
< wMaxPacketSize 0x0008 1x 8 bytes
< bInterval 8
351c321
< bDeviceClass 0 (Defined at Interface level)
---
bDeviceClass 0
355a326
can't get debug descriptor: Resource temporarily unavailable
On Sun, 24 Nov 2019 at 23:13, nick83ola <nick83ola@xxxxxxxxx> wrote:
[29054.588559] usb 1-1.2.2: new high-speed USB device number 14 using
xhci_hcd
[29054.665318] usb 1-1.2.2: New USB device found, idVendor=0e41,
idProduct=4246, bcdDevice= 2.00
[29054.665320] usb 1-1.2.2: New USB device strings: Mfr=1, Product=3,
SerialNumber=2
[29054.665320] usb 1-1.2.2: Product: HX Stomp
[29054.665321] usb 1-1.2.2: Manufacturer: LINE 6
[29054.665321] usb 1-1.2.2: SerialNumber: 3021888
[29054.669712] usb 1-1.2.2: parse_audio_format_rates_v2v3(): unable to
retrieve number of sample rates: set it to a predefined value (clock 16).
[29054.671488] usb 1-1.2.2: parse_audio_format_rates_v2v3(): unable to
retrieve number of sample rates: set it to a predefined value (clock 16).
$ lsusb -v -d 0e41:4246
Bus 001 Device 014: ID 0e41:4246 Line6, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x0e41 Line6, Inc.
idProduct 0x4246
bcdDevice 2.00
iManufacturer 1 LINE 6
iProduct 3 HX Stomp
iSerial 2 3021888
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0117
bNumInterfaces 5
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 1
bInterfaceCount 4
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 10
wTotalLength 0x002e
bmControls 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 16
bmAttributes 1 Internal fixed clock
bmControls 0x00
bAssocTerminal 0
iClockSource 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 32
wTerminalType 0x0201 Microphone
bAssocTerminal 64
bCSourceID 16
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 0
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 64
wTerminalType 0x0301 Speaker
bAssocTerminal 32
bSourceID 32
bCSourceID 16
bmControls 0x0000
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 32
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00e0 1x 224 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 64
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x00e0 1x 224 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
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 0x003d
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 2
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 3
bNrInputPins 1
baSourceID( 0) 2
BaSourcePin( 0) 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 4
bNrInputPins 1
baSourceID( 0) 1
BaSourcePin( 0) 1
iJack 0
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 1
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 3
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
On Sun, 24 Nov 2019 at 23:07, nick83ola <nick83ola@xxxxxxxxx> wrote:
Hi Jens,
in my hx stomp with 2.82 firmware the USB id is the same and I'm not
experiencing any glitch.
Also some people on line6 confirm that the patch is working for hx stomp.
If on helix the situation is different you should submit a patch.
Best Regards
Nicola Lunghi
On Sun, 24 Nov 2019 at 13:41, Jens Verwiebe <info@xxxxxxxxxxxxxxx> wrote:
Back to the Helix once more .....
I already informed Nicola about latest Line6 firmware 2.8 ff changes.
All Helix devices seem to get a new product id due to the new core
changes.
Additionally we have now an endpoint 5 for HID support ( applied dump ).
Not sure what we can make out of this
cause a lack of investigation time. The audio endpoint descriptors are
unchanged.
The problem with not working implicite feedback stays, so i still use my
arbitrary 48005 Hz hack.
Without slight pop would ocure in audio, but still with this hack every
20 minutes i get a slight distortion which
is no surprise.
Can someone shed light here if an implicite feedback device should show
the exact momentäry fequency ?
Should i see also the 16.16 feedback format ?
I looked through all code and 'am still stunned where the sync
fails.
Btw: i have also attached ioreg information from macOS if this helps
someone to dig deeper. I dumped driverless
"usb compliant" mode here with integer outcome for a quick overlook.
This so far ... Jens
--
Jens Verwiebe
Allerskehre 44 - 22309 Hamburg
Tel.: +49 40 68 78 50
mailto: info@xxxxxxxxxxxxxxx
web: https://www.jensverwiebe.de
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
