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USB: set default y for CONFIG_USB_DEVICE_CLASS

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Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: bert hubert <bert.hubert@netherlabs.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers 2007-05-27 17:04:58 +02:00 committed by Greg Kroah-Hartman
parent 85f6038f21
commit dda034bcb5
1 changed files with 12 additions and 8 deletions
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20
drivers/usb/core/Kconfig
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@ -40,21 +40,25 @@ config USB_DEVICEFS
config USB_DEVICE_CLASS
bool "USB device class-devices (DEPRECATED)"
depends on USB
default n
default y
---help---
Userspace access to USB devices is granted by device-nodes exported
directly from the usbdev in sysfs. Old versions of the driver
core and udev needed additional class devices to export device nodes.
These additional devices are difficult to handle in userspace, if
information about USB interfaces must be available. One device contains
the device node, the other device contains the interface data. Both
devices are at the same level in sysfs (siblings) and one can't access
the other. The device node created directly by the usbdev is the parent
device of the interface and therefore easily accessible from the interface
event.
information about USB interfaces must be available. One device
contains the device node, the other device contains the interface
data. Both devices are at the same level in sysfs (siblings) and one
can't access the other. The device node created directly by the
usb device is the parent device of the interface and therefore
easily accessible from the interface event.
This option provides backward compatibility if needed.
This option provides backward compatibility for libusb device
nodes (lsusb) when usbfs is not used, and the following udev rule
doesn't exist:
SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", \
NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0644"
config USB_DYNAMIC_MINORS
bool "Dynamic USB minor allocation (EXPERIMENTAL)"