2005-04-16 22:20:36 +00:00
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#
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# USB Core configuration
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#
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config USB_DEBUG
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bool "USB verbose debug messages"
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depends on USB
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help
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Say Y here if you want the USB core & hub drivers to produce a bunch
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of debug messages to the system log. Select this if you are having a
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problem with USB support and want to see more of what is going on.
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2007-11-27 06:11:55 +00:00
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config USB_ANNOUNCE_NEW_DEVICES
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bool "USB announce new devices"
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depends on USB
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default N
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help
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Say Y here if you want the USB core to always announce the
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idVendor, idProduct, Manufacturer, Product, and SerialNumber
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strings for every new USB device to the syslog. This option is
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usually used by distro vendors to help with debugging and to
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let users know what specific device was added to the machine
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in what location.
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If you do not want this kind of information sent to the system
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log, or have any doubts about this, say N here.
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2005-04-16 22:20:36 +00:00
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comment "Miscellaneous USB options"
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depends on USB
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config USB_DYNAMIC_MINORS
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2008-03-08 08:12:44 +00:00
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bool "Dynamic USB minor allocation"
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depends on USB
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2005-04-16 22:20:36 +00:00
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help
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If you say Y here, the USB subsystem will use dynamic minor
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allocation for any device that uses the USB major number.
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This means that you can have more than 16 of a single type
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of device (like USB printers).
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If you are unsure about this, say N here.
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config USB_SUSPEND
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2010-09-24 15:41:46 +00:00
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bool "USB runtime power management (autosuspend) and wakeup"
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2010-01-08 17:57:28 +00:00
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depends on USB && PM_RUNTIME
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2005-04-16 22:20:36 +00:00
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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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2010-09-24 15:41:46 +00:00
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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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2008-02-25 16:43:32 +00:00
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Documentation/usb/power-management.txt for more details).
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[PATCH] root hub updates (greater half)
This patch associates hub suspend and resume logic (including for root hubs)
with CONFIG_PM -- instead of CONFIG_USB_SUSPEND as before -- thereby unifying
two troublesome versions of suspend logic into just one. It'll be easier to
keep things right from now on.
- Now usbcore _always_ calls hcd->hub_suspend as needed, instead of
only when USB_SUSPEND is enabled:
* Those root hub methods are now called from hub suspend/resume;
no more skipping between layers during device suspend/resume;
* It now handles cases allowed by sysfs or autosuspended root hubs,
by forcing the hub interface to resume too.
- All devices, including virtual root hubs, now get the same treatment
on their resume paths ... including re-activating all their interfaces.
Plus it gets rid of those stub copies of usb_{suspend,resume}_device(), and
updates the Kconfig to match the new definition of USB_SUSPEND: it provides
(a) selective suspend, downstream from hubs; and (b) remote wakeup, upstream
from any device configuration which supports it.
This calls for minor followup patches for most HCDs (and their PCI glue).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/Kconfig | 11 ++-
drivers/usb/core/hub.c | 163 +++++++++++++++++++++++++----------------------
2 files changed, 97 insertions(+), 77 deletions(-)
2005-09-23 05:37:29 +00:00
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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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2005-04-16 22:20:36 +00:00
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If you are unsure about this, say N here.
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config USB_OTG
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2010-12-16 09:02:24 +00:00
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bool "OTG support"
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2012-09-15 04:15:50 +00:00
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depends on USB
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2010-03-29 11:24:51 +00:00
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depends on USB_SUSPEND
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2005-04-16 22:20:36 +00:00
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default n
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2010-12-16 09:02:24 +00:00
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help
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The most notable feature of USB OTG is support for a
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"Dual-Role" device, which can act as either a device
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or a host. The initial role is decided by the type of
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plug inserted and can be changed later when two dual
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role devices talk to each other.
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Select this only if your board has Mini-AB/Micro-AB
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connector.
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2005-04-16 22:20:36 +00:00
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config USB_OTG_WHITELIST
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bool "Rely on OTG Targeted Peripherals List"
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2011-01-20 22:44:16 +00:00
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depends on USB_OTG || EXPERT
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2008-03-06 07:17:38 +00:00
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default y if USB_OTG
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2005-04-16 22:20:36 +00:00
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help
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If you say Y here, the "otg_whitelist.h" file will be used as a
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product whitelist, so USB peripherals not listed there will be
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rejected during enumeration. This behavior is required by the
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USB OTG specification for all devices not on your product's
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2008-03-06 07:17:38 +00:00
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"Targeted Peripherals List". "Embedded Hosts" are likewise
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allowed to support only a limited number of peripherals.
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2005-04-16 22:20:36 +00:00
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Otherwise, peripherals not listed there will only generate a
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warning and enumeration will continue. That's more like what
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normal Linux-USB hosts do (other than the warning), and is
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convenient for many stages of product development.
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2006-04-02 18:18:09 +00:00
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config USB_OTG_BLACKLIST_HUB
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bool "Disable external hubs"
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2011-01-20 22:44:16 +00:00
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depends on USB_OTG || EXPERT
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2006-04-02 18:18:09 +00:00
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help
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If you say Y here, then Linux will refuse to enumerate
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external hubs. OTG hosts are allowed to reduce hardware
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2008-03-06 07:17:38 +00:00
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and software costs by not supporting external hubs. So
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2008-09-08 08:14:47 +00:00
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are "Embedded Hosts" that don't offer OTG support.
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2005-04-16 22:20:36 +00:00
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