hw.df5563.busy: 0 -> 1
--- ps while parked ---
   PID STAT   WCHAN    COMMAND
  1981 D1     iicreq   ./park wait
--- kill -9 ---
--- ps after SIGKILL ---
   PID STAT   WCHAN    COMMAND
  1981 D1     iicreq   ./park wait
SURVIVED_SIGKILL=YES
--- non-owner release (expect EACCES, no wakeup) ---
[park 1986] ioctl 0xc0046404 on /dev/df5563...
[park 1986] ioctl: returned -1 (errno=13: Permission denied)
   PID STAT   WCHAN
  1981 D1     iicreq  
STILL_PARKED_AFTER_REL=YES
--- free the bridge + another child cycling the bus wakes it ---
hw.df5563.busy: 1 -> 0
[park 1990] ioctl 0xc0046401 on /dev/df5563...
[park 1990] ioctl: returned 0 (OK)
[park 1990] release: returned 0 (OK)
   PID STAT   COMMAND
GONE_AFTER_WAKEUP=YES
[park 1981] ioctl 0xc0046402 on /dev/df5563...