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