On Tue, Jul 12, 2011 at 17:51, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Tue, 12 Jul 2011, Sudarshan Jagadale wrote: >> If i dont want to use any library or usb.h in my hotplug detection and >> removal code then is there other way to do this? > > You can copy the code from libusb into your own program, if you're > willing to follow the license requirements. > >> I just want following information from system/kernel to my module like, >> idvendor,idproduct, bus_info, system device name? >> Bus info should be like we use in /dev/video0? is there any way to do this? >> in short i would like to make path equivalant to *usb_make_path()? how can i >> achive this ? > > You can look through the directories under /sys/bus/usb/devices/. > Ignore directory names that start with "usb" or that contain a ':', > because they don't refer to external devices. > > Within each of the remaining directories, the vendor ID is in a file > named idVendor and the product ID is in a file named idProduct. I > don't know what you mean by "bus_info" or "system device name". This is a rather old, but still almost valid example of a full-hotplug-support program handling video devices: http://article.gmane.org/gmane.linux.hotplug.devel/13925 (I still can see only Alan's mails. Alan, you are the HTML-filter? :)) Kay -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
