kern/117025: Pwcbsd-1.4.0 + New USBStack not working

Raaf raaf at
Tue Oct 9 20:40:03 PDT 2007

The following reply was made to PR kern/117025; it has been noted by GNATS.

From: Raaf <raaf at>
To: Ganael LAPLANCHE <ganael.laplanche at>
Cc: bug-followup at
Subject: Re: kern/117025: Pwcbsd-1.4.0 + New USBStack not working
Date: Wed, 10 Oct 2007 05:32:06 +0200

 Ganael LAPLANCHE wrote:
 > On Tue, 09 Oct 2007 19:47:29 +0200, Raaf wrote
 >> Hello,
 >> The pwcbsd port has just been updated to 1.4.1 which fixes a
 >> similar problem the driver has with uhci controllers on current.
 >> Can you check if this new version fixes your problem with the
 >> HPS stack?
 > Hi, 
 > Thanks for your anwser !
 > Well, same message while plugging the cam :
 > Oct  9 20:38:11 home kernel: usbd_fill_iface_data: invalid wMaxPacketSize, addr=125!
 > [...]
 > But now, I can start pwcview and see myself (is /that/ me ?). Unfortunately, I
 > cannot set fps (-f option). Any attempt leads to this message :
 > % pwcview -f 25                                                                
 > Failed to set webcam to: 320x240 (sif) at 25 fps (Resource deadlock avoided)
 > in /var/log/messages :
 > Oct  9 20:42:05 home kernel: pwc0: Failed to set alternate interface to: 6 (11)
 11 is the error code returned by the call to usbd_set_interface().
 With the FreeBSD USB stack 11 means USBD_NO_POWER. I don't know if
 it's the same with the HPS stack.
 Anyway, since the pwcbsd driver was designed for the official
 FreeBSD USB stack and not for the HPS USB stack, i can not really
 help you with it.
 In fact i'm surprised that you somehow managed to get the pwcbsd
 driver to compile and run with the HPS stack.

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