On Tuesday 29 March 2005 00:03, Greg KH wrote: > On Sun, Mar 27, 2005 at 02:24:59PM -0500, Adam Belay wrote: > > One of the original design goals of sysfs was to provide a standardized > > location to keep driver configuration attributes. Although sysfs > > handles this very well for bus devices and class devices, there isn't > > currently a method to export attributes for device drivers and their > > specific bound device instances to userspace. > > Hm, what's device_create_file(), device_remove_file(), and DEVICE_ATTR() > for? A number of drivers use these functions today to add their own > driver specific attributes to a device they control. > > Then, userspace can just do a simple: > ls /sys/bus/pci/drivers/my_foo_driver/ > to see all devices on the PCI bus that are controlled by that driver. > Then it can go into those directories and cat out the specific > information if needed. It probably would be nice if all driver-specific device attributes would be grouped under /sys/devices/.../<blah_device>/drvattr/* so their names would not clash with names of driver core attributes. Unfortunately that would mean we are breaking userspace again... -- Dmitry
