Hi Cody, I posted this to both you and William but in a different post.
Note: The USB hub is an externally powered Belkin HS USB 2.0 hub model F5U233. It is not recognized at boot time. I'll try a hot plug and look at dmesg. No messages appended to dmesg after the hot plug. the /sys/bus/usb/devices file is empty. I appreciate your help. Mike On Thursday, April 17, 2014 7:48:42 AM UTC-7, cody wrote: > > Was your hub plugged in at boot or after? I may have a workaround you can > try. > If you know the hub enumerates post the contents of /sys/bus/usb/devices > > > On Wed, Apr 16, 2014 at 9:59 PM, William Hermans > <[email protected]<javascript:> > > wrote: > >> I have no hands on with this sort of thing, but I have noticed on many >> occations that "we" always need to research the hardware we use on a >> particular Linux Distro. >> >> .Which kernel are you using again ? 3.8.x does not do Hotplug very well, >> or even at all. SO if you're hot plugging USB devices into the hub after >> the system is up and running, It could be that the hub may buffer you from >> a kernel oops, but still does not recognize the devices. >> >> It could also be that you need to compile a module or two into the kernel >> statically for the HUB to work properly. But that is just a guess on my >> behalf that could be wrong. I have not personally noticed anything specific >> to this when browsing menuconfig, but I was not looking for this sort of >> thing when compiling my own kernel. >> >> *OR* Maybe you just need a different hub . . . Perhaps someone with more >> experience with this sort of thing will reply and give us their 2 cents. >> >> >> On Wed, Apr 16, 2014 at 7:40 PM, <[email protected] <javascript:>> wrote: >> >>> Hi William, >>> >>> Yes, I realize that the pain is self-inflicted and I want to be clear >>> about that. I have a favourite golfer that once said,"I'm an idiot!". I've >>> uttered those very words once or twice lately. Judging by the forums I >>> think others have said similar things. >>> >>> You would never believe it by my comments but in the late 1980's I was >>> doing this full time on a RT VME chassis running UniFlex (Unix variant). I >>> wrote drivers in C and 68030 assembly language and did some very neat >>> stuff. The learning curve was steep back then too. Ah, but I was young! >>> Time didn't matter...So I had to see what the kids are getting into these >>> days. >>> >>> I am actually more concerned with another issue regarding attaching a >>> USB hub to the USB host on the BBB. After I've done that the system won't >>> enumerate any of the devices I've put into the hub. But according to dmesg >>> the hub itself was successfully installed. >>> >>> Ideas? >>> >>> >>> >>> On Monday, April 14, 2014 3:24:04 PM UTC-7, William Hermans wrote: >>>> >>>> macarr, just so you know I have been using Debian for a good while and >>>> it took me 2-3 tries to get his steps right myself. At the time the >>>> instructions were a bit less clear, but the fault was my own ( I was a bit >>>> rusty with some of the steps / commands ). >>>> >>>> I am currently rebuilding my own kernel to the latest from scratch, and >>>> so far they seem to work perfectly ( I am about half way through, e.g. >>>> I've >>>> downloaded all the tools and have compiled the kernel). >>>> >>>> @Robert, I should be able to do the same steps I took back in December >>>> to get a working TFTP/NSF boot/root with the latest kernel ? >>>> >>>> What about 3.13 ? I remember you saying something about it being a >>>> "different animal" some months ago. >>>> >>>> I would ask on your comments pages for your site, but . . . Yeah editor >>>> wont stop loading. >>>> >>>> >>>> On Mon, Apr 14, 2014 at 1:15 PM, <[email protected]> wrote: >>>> >>>>> Yes Robert, >>>>> >>>>> You are correct on all counts. I was unaware of the >>>>> http://eewiki.net/display/linuxonarm/BeagleBone+Black<http://www.google.com/url?q=http%3A%2F%2Feewiki.net%2Fdisplay%2Flinuxonarm%2FBeagleBone%2BBlack&sa=D&sntz=1&usg=AFQjCNEwHvJG3PDxw3Sfxt5K8nmSnOnirA>. >>>>> I performed a google search and found the first site I mentioned. >>>>> >>>>> Being "new" can be a painful process. Not working on a staff with >>>>> others to learn from is even more painful. >>>>> >>>>> The biggest obstacle is that "you don't know what you don't know". >>>>> >>>>> Again, I thank you for your efforts. I will be persistent. >>>>> >>>>> Respectfully, >>>>> >>>>> -- >>>>> For more options, visit http://beagleboard.org/discuss >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "BeagleBoard" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected] <javascript:>. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
