On 04/09/10 06:25, Warren Block wrote: > On Fri, 9 Apr 2010, per...@pluto.rain.com wrote: > >> Programmer In Training <p...@joseph-a-nagy-jr.us> wrote: >> >>> ... they are only attached for power purposes ... >> >>> Input power: DC 5V 500mA >> >> Any chance these speakers need a USB 2.0 port, and all the ports >> on your FreeBSD box are 1.x? I don't remember the USB power spec >> offhand, but 2.5W may exceed what a USB 1.x port can supply -- >> a limit that applies regardless of the system's overall power >> provisioning. > > 500 mA is 5 unit loads for USB 2.0, or powered hub territory. The > device has to request that high power mode, and the system can say no > and disable the port. That should show in /var/log/messages. <snip>
The following messages so far haven't shown up today. Apr 8 22:30:01 heaven root: Unknown USB device: vendor 0x046e product 0x5542 bus uhub4 Apr 8 22:30:01 heaven kernel: uhid0: <vendor 0x046e product 0x5542, class 0/0, rev 1.10/1.10, addr 3> on usbus4 Apr 8 22:30:01 heaven kernel: uhub_explore:611: illegal enable change, port 3 Apr 8 22:30:15 heaven kernel: ugen4.3: <vendor 0x046e> at usbus4 (disconnected) Apr 8 22:30:15 heaven kernel: ukbd0: at uhub4, port 3, addr 3 (disconnected) Apr 8 22:30:15 heaven kernel: uhid0: at uhub4, port 3, addr 3 (disconnected) Apr 8 22:30:16 heaven kernel: usb_alloc_device:1586: set address 3 failed (USB_ERR_IOERROR, ignored) Apr 8 22:30:16 heaven kernel: usb_alloc_device:1624: getting device descriptor at addr 3 failed, USB_ERR_IOERROR! -- Yours In Christ, PIT Emails are not formal business letters, whatever businesses may want. Original content copyright under the OWL http://owl.apotheon.org Please do not CC me. If I'm posting to a list it is because I am subscribed.
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