[Nut-upsuser] salicru UPS in OpenWRT

Charles Lepple clepple at gmail.com
Wed Feb 11 02:14:25 UTC 2015

On Feb 10, 2015, at 3:46 PM, Josu Lazkano <josu.lazkano at gmail.com> wrote:

> If I attache the USB cable there is nothing in dmesg, and there is
> nothing in lsusb:
> # lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> It looks like it is not detected. In Debian it looks great:

While USB 2.0 is a superset of 1.x, the USB 2.0 High Speed devices are sometimes handled by a different driver than the Full Speed (12 Mbit) and Low Speed (1.5 Mbit) devices.

You might need either a full-speed USB host controller driver (uhci-hcd or ohci-hcd) in addition to ehci-hcd, or your hardware might need an external High Speed to Full Speed rate-matching hub.

Charles Lepple
clepple at gmail

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