On Thu, 18 Jun 2009, Frans Pop wrote: > Hi Greg, Randy, > > Attached a modified version of the usb-devices.sh script. The change is > that I removed almost all the directory changes, which gives some speedup > (~5%) and IMHO also simplifies the code. > > Attached both my version and a patch relative to the script as attached in > http://article.gmane.org/gmane.linux.usb.general/16828. > > I plan to use a modified version of the script in Debian Installer. > We currently cat /proc/bus/usb/devices into a hardware-summary file we > create for troubleshooting purposes. I prefer using the script over > mounting debugfs in the installer. > I'll mention you both as authors of the script. Can you add in the Parent and Port fields to the T: line? They can be derived from the device's directory name as follows: If the name is "usb*" then Parent and Port are both 0. If the name is "A-B" or "A-B.C" or "A-B.C.D" etc. then the port number is B or C or D etc. (although the real /proc/bus/usb/devices file displays the port number - 1, for unknown reasons). The Parent value is the contents of the device's ../devnum attribute. I've never found much use for the Level or Count fields. I also don't see any reason to include the E: line for endpoint 0; the only useful information it contains is the maxpacket size, and that is already present on the D: line. Alan Stern P.S.: As long as you're making changes, you might as well fix the TBD comment near the top. There's no hope of printing inactive configurations, since they aren't represented in sysfs. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
