On Thu, 25 Aug 2016, Jacek Anaszewski wrote: > >>> What kind of description do you mean? Where should it be used / where > >>> should it appear? > >>> > >> > >> Product name/symbol. Actually it should be USB subsystem responsibility > >> to provide the means for querying the product name by port id, if it > >> is possible at all. > > > > cat /sys/bus/usb/devices/PORT/product > > cat /sys/bus/usb/devices/PORT/manufacturer > > > > These will work if there is a device registered under PORT. > > I've found only idProduct and idVendor files. They indeed uniquely > identify the device, but the numbers are not human readable. > Is there a way to retrieve the corresponding names in kernel? If the device provides the string descriptors then the textual product and manufacturer files are available in sysfs, otherwise they aren't. > Does the lsusb command do the mapping in the user space or maybe > it takes the names from kernel? lsusb does the mapping in userspace, based on an ID database. On my system (Fedora), the database is /etc/udev/hwdb.bin. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
