Comment 22 for bug 1485057

Revision history for this message
Roland Weber (r-o-l) wrote :

contents of /sys/kernel/debug/usb/ehci/0000:00:1d.0/registers before unbinding:
bus pci, device 0000:00:1d.0
EHCI Host Controller
EHCI 1.00, rh state running
ownership 00000001
SMI sts/enable 0xc0080000
structural params 0x00200008
capability params 0x00036881
status 6008 Periodic Recl FLR
command 0010011 (park)=0 ithresh=1 Periodic period=1024 RUN
intrenable 37 IAA FATAL PCD ERR INT
uframe 2cb2
port:1 status 001005 0 ACK POWER sig=se0 PE CONNECT
port:2 status 001000 0 ACK POWER sig=se0
port:3 status 001000 0 ACK POWER sig=se0
port:4 status 001000 0 ACK POWER sig=se0
port:5 status 001000 0 ACK POWER sig=se0
port:6 status 001000 0 ACK POWER sig=se0
port:7 status 001000 0 ACK POWER sig=se0
port:8 status 001000 0 ACK POWER sig=se0
irq normal 17 err 0 iaa 8 (lost 0)
complete 17 unlink 0

There are no /sys/.../power/ files, because CONFIG_PM is disabled.
This kernel does not freeze, so the debug output on unbinding is contained in the attached dmesg log.