[Alsa-user] snd-usb-audio is having trouble recognizing the Marantz HD-AMP1

[Masaru N. <no...@la...>]

Hello,

On openSUSE Tumbleweed, recognizing the Marantz HD-AMP1 became
difficult starting with kernel 6.18.7, and the difficulty
significantly increased with kernel 6.18.9.

   $ inxi -A

   Audio:
   Device-1: NVIDIA AD106M High Definition Audio driver: N/A
   Device-2: Advanced Micro Devices [AMD/ATI] Radeon High Definition Audio
    [Rembrandt/Strix] driver: N/A
   Device-3: Advanced Micro Devices [AMD] Family 17h/19h/1ah HD Audio
    driver: N/A
   Device-4: Generic USB Audio driver: hid-generic,snd-usb-audio,usbhid
    type: USB
   Device-5: D&M Holdings (Denon/Marantz) HD-AMP1 driver: snd-usb-audio
    type: USB
   API: ALSA v: k6.18.9-1-default status: kernel-api
   Server-1: PipeWire v: 1.5.85 status: active (process)

  $ cat /proc/asound/cards

  0 [HDAMP1         ]: USB-Audio - HD-AMP1
                      D&M Holdings Inc. HD-AMP1 at usb-0000:08:00.0-8, high speed
  1 [Audio          ]: USB-Audio - USB Audio
                      Generic USB Audio at usb-0000:08:00.0-10, high speed

However, since it doesn't recognize the HD-AMP1, I keep repeating this
process;

  $ sudo systemctl restart systemd-udev-trigger.service

Here is the info about HD-AMP1;


     HD-AMP1
     Manufacturer: D&M Holdings Inc.
     Speed: 480Mb/s (high)
     Bus:   1
     Address:  13
     USB Version:  2.00
     Device Class: ef
     Device Subclass: 02
     Device Protocol: 01
     Maximum Default Endpoint Size: 64
     Number of Configurations: 2
     Vendor Id: 154e
     Product Id: 3007
     Revision Number: 00.06

     Config Number: 1
	Number of Interfaces: 3
	Attributes: c0
	MaxPower Needed: 10mA

	Interface Number: 0
		Name: snd-usb-audio
		Alternate Number: 0
		Class: 01
		Sub Class: 01
		Protocol: 20
		Number of Endpoints: 0

	Interface Number: 1
		Name: snd-usb-audio
		Alternate Number: 1
		Class: 01
		Sub Class: 02
		Protocol: 20
		Number of Endpoints: 2

			Endpoint Address: 01
			Direction: out
			Attribute: 5
			Type: Isoc
			Max Packet Size: 776
			Interval: 125us

			Endpoint Address: 81
			Direction: in
			Attribute: 17
			Type: Isoc
			Max Packet Size: 4
			Interval: 1ms

	Interface Number: 2
		Name: (none)
		Alternate Number: 0
		Class: fe
		Sub Class: 01
		Protocol: 01
		Number of Endpoints: 0
  
Best Regards.

--
┏━━┓彡    Masaru Nomiya                  mail-to: nomiya @ lake.dti.ne.jp
┃＼／彡
┗━━┛     　　 "Even among humans, the Pirahã, a small tribe living deep
	     	  in the Amazon rainforest, have no words to express the past
		  or future, and live entirely in the present moment."

  		     	          -- "Keizaikihyou" Toyotaka Sakai (in JP) --