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Am Sat, 15 Oct 2011 00:54:48 -0700
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schrieb Canek Peláez Valdés <caneko@×××××.com>:
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> On Sat, Oct 15, 2011 at 12:49 AM, Alain Didierjean |
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> <alain.didierjean@××××.fr> wrote: |
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> > |
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> > * Messages for package sys-fs/udisks-1.0.4-r1: |
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> > |
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> > * CONFIG_USB_SUSPEND: is not set when it should be. |
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> > |
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> > As the message above from emerge says, no way to update |
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> > sys-fs/udisks as CONFIG_USB_SUSPEND is not set. The problem is |
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> > where to find that option. Not in linux/.config, so where ? |
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i think it only shows up there if it is already set. AFAIK the
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kernel options are defined in the various Kconfig files spread
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throughout the source tree. in this case
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drivers/usb/core/Kconfig
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when searching for an option you can do
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find /usr/src/linux/ -name Kconfig \
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-exec grep USB_SUSPEND {} /dev/null \;
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which gives you two hits:
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/usr/src/linux/drivers/usb/core/Kconfig:config USB_SUSPEND
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/usr/src/linux/drivers/usb/core/Kconfig: depends on USB_SUSPEND
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and
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grep -A 20 'config USB_SUSPEND' /usr/src/linux/drivers/usb/core/Kconfig
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giving you description and help:
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config USB_SUSPEND
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bool "USB runtime power management (autosuspend) and wakeup"
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depends on USB && PM_RUNTIME
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help
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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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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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If you are unsure about this, say N here.
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> Cool tip for the future: Go to /usr/src/linux, type "make menuconfig". |
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> Then type "/" (slash). Then type SUSPEND and ENTER. It will show you |
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> all the kernel options with SUSPEND on them. |
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or this, of course ;)
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> |
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> In particular, for USB_SUSPEND it says: |
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> |
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> Symbol: USB_SUSPEND [=y] |
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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:93 |
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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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> So there, is in Device Drivers -> USB support -> Support for |
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> Host-side USB. |
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> |
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> Regards. |
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