Hi, Following a discussion in linux-usb list I think there is a bug. But I don't know much about USB to continue debugging...
It happens with, and only with a Huawei E169 modem. It I power-on a WRT160NL the device doesn't appear registered on bus. If for example I reboot the router(soft reboot), it is detected. As if I insert it after boot. > On power-on(device not discovered): > > r...@openwrt:/# cat /sys/kernel/debug/usb/ehci/ar71xx-ehci/registers > bus platform, device ar71xx-ehci > Atheros AR91xx built-in EHCI controller > EHCI 1.00, hcd state 1 > structural params 0x00010011 > capability params 0x00000006 > status 0088 FLR > command 010009 (park)=0 ithresh=1 period=256 RUN > intrenable 37 IAA FATAL PCD ERR INT > uframe 0878 > port 1 status c001000 POWER sig=se0 > irq normal 0 err 0 reclaim 0 (lost 0) > complete 0 unlink 0 > > On restart(device discovered): > > r...@openwrt:/# cat /sys/kernel/debug/usb/ehci/ar71xx-ehci/registers > bus platform, device ar71xx-ehci > Atheros AR91xx built-in EHCI controller > EHCI 1.00, hcd state 1 > structural params 0x00010011 > capability params 0x00000006 > status 40088 FLR > command 010009 (park)=0 ithresh=1 period=256 RUN > intrenable 37 IAA FATAL PCD ERR INT > uframe 2f18 > port 1 status 001805 POWER sig=j PE CONNECT > irq normal 13 err 0 reclaim 5 (lost 0) > complete 13 unlink 0 That's quite clear. If you compare the "port 1" lines, you'll see the difference. In the not-discovered case the hardware reports that nothing is plugged into the port, whereas in the other case it reports that there is a connection. There is a bug either in the EHCI hardware or in the platform driver. Alan Stern -- \ Nuno Gonçalves / \ Bugs? Features! / \ nuno...@gmail.com / PORTUGAL E-mail sent directly from Google Mail webmail using HTTPS on behalf of Nuno João Pinto Gonçalves, birth date 1986-11-16. E-mail headers provide good assurance that this message was not tampered and originates from nuno...@gmail.com. If you require additional security, I may provide on request X509 electronic signature under Portuguese government chain. Se precisar de assinatura digital do Cartão de Cidadão, de uma apitadela. _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
