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Groups > linux.debian.bugs.dist > #971704

Bug#935748: linux-source-4.9: Dev number change after boot on Intel controller

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Package: linux-source-4.9
Severity: normal

When try to connect on audio usb.
 How to reproduce this bug:
After reboot inspect /sys/bus/usb/devices/1-4/devnum resul is 2
Run journalctl -r
0:57:38 debian kernel: usb 1-4: New USB device strings: Mfr=0, Product=0,
SerialNumber=0
Aug 25 20:57:38 debian kernel: usb 1-4: New USB device found, idVendor=8087,
idProduct=07dc
Aug 25 20:57:38 debian kernel: sd 0:0:0:0: [sda] Attached SCSI disk
Aug 25 20:57:38 debian kernel:  sda: sda1 sda2 sda3
Aug 25 20:57:38 debian kernel: sd 0:0:0:0: [sda] Write cache: enabled, read
cache: enabled, doesn't support DPO or FUA
Aug 25 20:57:38 debian kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
Aug 25 20:57:38 debian kernel: sd 0:0:0:0: [sda] Write Protect is off
Aug 25 20:57:38 debian kernel: sd 0:0:0:0: [sda] 4096-byte physical blocks
Aug 25 20:57:38 debian kernel: sd 0:0:0:0: [sda] 976773168 512-byte logical
blocks: (500 GB/466 GiB)
Aug 25 20:57:38 debian kernel: usb 1-4: new full-speed USB device number 2
using xhci_hcd

......................................................................
......................................................................
Aug 25 20:57:42 debian kernel: Bluetooth: hci0: Intel Bluetooth firmware patch
completed and activated
Aug 25 20:57:42 debian kernel: media: Linux media interface: v0.10
Aug 25 20:57:42 debian kernel: Bluetooth: hci0: Intel Bluetooth firmware file:
intel/ibt-hw-37.7.10-fw-1.0.1.2d.d.bseq
Aug 25 20:57:42 debian kernel: bluetooth hci0: firmware: direct-loading
firmware intel/ibt-hw-37.7.10-fw-1.0.1.2d.d.bseq
Aug 25 20:57:42 debian mtp-probe[245]: bus: 1, device: 3 was not an MTP device




On gnome on/off connection audio usb by multiple times.
 Inspect /sys/bus/usb/devices/1-4/devnum result is 4.

Run journalctl -r

Usb driver is reloaded by the systemd
Aug 25 21:03:20 debian systemd[1]: Reached target Bluetooth.
Aug 25 21:03:20 debian kernel: Bluetooth: hci0: Intel device is already
patched. patch num: 27
Aug 25 21:03:20 debian kernel: Bluetooth: hci0: read Intel version:
3707100100012d0d27
Aug 25 21:03:20 debian kernel: usb 1-4: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
Aug 25 21:03:20 debian kernel: usb 1-4: New USB device found, idVendor=8087,
idProduct=07dc
Aug 25 21:03:19 debian kernel: usb 1-4: new full-speed USB device number 4
using xhci_hcd

On fine, with  device number 4 , i can to start right audio profile on
pulseaudio.



-- System Information:
Debian Release: 9.9
  APT prefers oldstable
  APT policy: (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-9-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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Bug#935748: linux-source-4.9: Dev number change after boot on Intel controller Corcodel Marian <corcodel.marian@gmail.com> - 2019-08-25 21:40 +0200

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