On Wed, 19 Dec 2012, Martin Mokrejs wrote: > Hi, > I just subscribed to the linux-usb list as an occasional user ... > I glanced through this thread backwards ... and am somehow surprised > nobody objects. I am no expert but it is my impression a lot of us > want CPU powersaving, maybe LCD powersaving and don't care about > external USB devices. It is only causing a hassle if the mouse goes > sleep every 2 seconds or first keyboard keystroke goes away because > it just woke up the keyboard. Even worse if a usb-storage device goes > sleep and kernel chokes on subsequent file access. Sure, it is because > of broken devices, firmware, sometimes linux ... but why do I have to > sacrifice all power-saving to avoid potential issues. I just do not want > to hit new bugs here or there in powersaving features in USB devices, > really. They are cheap, crappy and I accepted it. But please, don't > make me either use their power-saving or disable powersaving altogether. > I believe you know very well what in kernel is affected and if you say > few lines of code are affected, but do you really want laptop-mode-tools > and all other to change their documentation, config files and make > all the whitelists and blacklists in their config files useless? If I > get it right I either use the tool as a whole or not at all? Really? > > I must be missing something. sorry for my incompetence taht I am not so > knowledgeable of power-saving in general. Am just a 'looser'. ;) Don't worry -- asking questions like this is how you learn. Yes, you are indeed missing something. I didn't propose that the USB power-saving code be removed from the kernel. Rather, I suggested that the Kconfig option be removed so that it will no longer be possible to build a kernel _without_ the power-saving code. Alan Stern -- 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
