Felix Kuperjans wrote: > Dale wrote: >> Howdy, >> >> I was doing a update a while back and noticed a ewarn, enotice or >> something going by. I used the elogviewer to go back and dig it out. >> This is what it says: >> >> Found sources for kernel version: >> 3.5.0-gentoo >> Checking for suitable kernel configuration options... >> ERROR (setup) >> >> CONFIG_USB_SUSPEND: is not set when it should be. >> WARN (setup) > udisks will work without that, but if you try to safely unplug a USB > stick or other USB storage device, an error will occur because udisks is > unable to power off the device before unplugging. > The option is not required for its essential functionality, but it's > definitely useful and does not add any big overhead to the kernel, so I > always enable it and would recommend enabling it unless you have a > strong reason not to set it.
Ahhh, this was helpful info. I do use sticks but right now that is the only storage thing I use on my system. Everything else is printer, camera etc etc. So, this will 'improve' how a USB stick works too. Neat. >> Please check to make sure these options are set correctly. >> Failure to do so may cause unexpected problems. >> >> So, I go into the kernel's menuconfig and find this: >> >> │ CONFIG_USB_SUSPEND: │ >> │ │ >> │ If you say Y here, you can use driver calls or the sysfs │ >> │ "power/control" file to enable or disable autosuspend for │ >> │ individual USB peripherals (see │ >> │ Documentation/usb/power-management.txt for more details). │ >> │ │ >> │ Also, USB "remote wakeup" signaling is supported, whereby some │ >> │ USB devices (like keyboards and network adapters) can wake up │ >> │ their parent hub. That wakeup cascades up the USB tree, and │ >> │ could wake the system from states like suspend-to-RAM. │ >> │ │ >> │ If you are unsure about this, say N here. │ > This message is on a lot of important stuff, it just means you will be > able to use USB (at least on *some* machines) without enabling it. > As soon as you have any reason to set it or know what it does, this > recommendation is superfluous. Only take care if the help message says > something like: > * This is usually not needed, so if unsure, say no > * This is highly experimental, ... > * only set this as module ... > * Do not enable unless ... > In such cases, you should be sure what you are doing and usually no > ebuild would require options like that. Yea, I just didn't know what it was for so I went with the unsure part. Generally, if I am unsure, I leave it out. Thing is, I had a package that hinted it would like to have it. Hence the question about what this was and such. I wanted to take the 'un' out of unsure. lol >> │ │ >> │ Symbol: USB_SUSPEND [=n] │ >> │ Type : boolean │ >> │ Prompt: USB runtime power management (autosuspend) and wakeup │ >> │ Defined at drivers/usb/core/Kconfig:41 │ >> │ Depends on: USB_SUPPORT [=y] && USB [=y] && PM_RUNTIME [=y] │ >> │ Location: │ >> │ -> Device Drivers │ >> │ -> USB support (USB_SUPPORT [=y]) │ >> │ -> Support for Host-side USB (USB [=y]) >> >> The important part is about 'if you are unsure about this, say N here'. >> Well, I don't think I need USB remote wakeup or anything so I don't >> think I need this but at the same time, udisk is giving me notice that >> it should be there. >> >> This is a desktop system not a laptop. Do I need to listen to me not >> needing it or udisk that says I do? > This option is only USB relevant and can be used on any laptop / desktop > system / whatever with USB support. I got that now. The info above helped on that one. >> Opinions? >> >> Dale >> >> :-) :-) >> >> P. S. The only things I have USB right now is my printer and a camera. I >> may have a UPS added to that when I get around to rebooting again. I'm >> not sure on how I will end up connecting it yet. > In case you have no USB sticks and never want to use any USB storage > device, you won't need udisks at all, try disabling the "udisks" USE > flags on your desktop packages (esp. gvfs). > > Regards, > Felix > > I do plan to get a external USB drive one of these days. So, it is enabled and I'm now 'sure' about it. ;-) You applied power to my light bulb. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words!
