On Wed, 12 Dec 2007, Phil Endecott wrote: > I presume that reading /sys/bConfigurationValue just returns the > kernel's record of which configuration was most recently set, rather > than actually doing a get_configuration on the bus - doesn't it?
That's right. > > Writing to the sysfs > > bConfigurationValue file doesn't have this requirement. > > Ah, I didn't know that that was writeable. Interesting. Maybe there > is more that I can achieve by writing to sysfs. None of the other files are writable except the ones in the .../power/ subdirectory and the "uevent" file. You might want to look through the persist.txt and power-management.txt files under Documentation/usb/. > I'll have to think > about that. Oh and BTW, there is also a sysfs file just called > 'configuration'; what does that do? It contains the contents of the configuration's string descriptor. If there isn't a config string descriptor then the file is empty. Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
