Hello, For 4 years of using linux I have problem with my USB devices on my desktop PC. When was mouse (SD card reader, ...) plugged, still lights (and after shutdown too). Finally some days ago I found solution of my problem on page https://bugzilla.kernel.org/show_bug.cgi?id=5410 . Here is also defined this problem. I write new patch file https://bugs.launchpad.net/ubuntu/+source/linux/+bug/42149/+attachment/1484850/+files/usb-new.patch and this solve my problem. When I rmmod module ohci-hcd (or shutdown PC) all USB devices power off too. Without this patch, I tried echo suspend > /sys/bus/usb/devices/$USB/power/level . When module ohci-hcd was loaded, $USB power off. But when I rmmod ohci-hcd, all USB devices immediately power on (same after shutdown PC), it ignore power/level settings. With this patch I dont change power/level, it automatically power off USB devices when ohci-hcd is unloaded. Sorry, but I dont understand what this usb modules in kernel doing, I'm only linux kernel user. PS: I'm not in list, please CC my email address. -- Pali Rohár pali.rohar@xxxxxxxxx -- 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
