The following reply was made to PR usb/181159; it has been noted by GNATS.

From: Antonis Anastasiadis <>
To: Hans Petter Selasky <>
Subject: Re: usb/181159: Problem attaching USB device
Date: Sat, 10 Aug 2013 17:53:47 +0300

 =D3=F4=E9=F2 10 =C1=F5=E3 2013, 4:52 =EC.=EC., =EF/=E7 Hans Petter =
 Selasky <> =DD=E3=F1=E1=F8=E5:
 > Try to double the values one by one.
 > Any change?
 > Need to reboot or re-plug the device before testing.
 I've managed to up them until the following values, rebooting after each =
 hw.usb.timings.port_reset_delay: 800
 hw.usb.timings.port_root_reset_delay: 4000
 hw.usb.timings.port_reset_recovery: 4000
 hw.usb.timings.port_powerup_delay: 300
 hw.usb.timings.port_resume_delay: 640
 hw.usb.timings.set_address_settle: 160
 hw.usb.timings.resume_delay: 4000
 hw.usb.timings.resume_wait: 800
 hw.usb.timings.resume_recovery: 800
 hw.usb.timings.extra_power_up_time: 320
 The problem still persists, although the dmesg flood rate is =
 considerably smaller now. I guess this is to be expected.
 Unfortunately, this USB device is allocated by request for =
 troubleshooting purposes, and I cannot have access to it for more than a =
 few hours at a time.=
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