Thanks for the explanation, PCI, I2C, SCSI and USB all make sense now. I hadn't realized that USB hubs were also USB devices. This is all new so some things aren't obvious to me. So looking at it from a symmetry point of view then shouldn't all entries in /sys/bus have a parallel entry in /sys/class like 'bus'_host? I have these buses: i2c i2c-adapter ide ieee1394 pci pci_bus platform scsi scsi_host usb usb_host What do you think about moving the 'host' class directories out of /class and into the bus directory? For example move /sys/class/usb_host to /sys/bus/usb/host, /sys/class/i2c_adapter to /sys/bus/i2c/adapter (or host). Moving the 'host' items out of /sys/class will make /sys/class have more of a direct correspondence with /udev. --- Greg KH <greg at kroah.com> wrote: > On Mon, Feb 09, 2004 at 05:09:27PM -0800, Jon Smirl wrote: > > I see now that the usb hosts are in /sys/class/usb_host. But to be > symetrical > > with USB and PCI we should have i2c-1, i2c-2, etc in /sys/bus/i2c/devices. > > Again no. See my other response to you for why. > > Remember, a i2c adapter is not a i2c device. > > But a USB controller does contain a USB device (at least one, usually > more than one these days) within itself. > > thanks, > > greg k-h ===== Jon Smirl jonsmirl at yahoo.com __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html
