[PATCH 1/9] USB: set default y for CONFIG_USB_DEVICE_CLASS
Greg Kroah-Hartman <[email protected]>
| Newsgroups | gmane.linux.usb.devel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Kay Sievers <[email protected]> Signed-off-by: Kay Sievers <[email protected]> Cc: bert hubert <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/core/Kconfig | 22 +++++++++++++--------- 1 files changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index f493fb1..346fc03 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -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. - - This option provides backward compatibility if needed. + 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 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)" -- 1.5.2.1 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel