Download vnc viewer for mac os x 10. In most cases, USB accessories like fans and lights aren't real USB devices - they just want a little bit of 5v power. The way USB works for real devices is that they get a little bit of power to start, enough for them to turn on. Then they enumerate with the USB controller and request more power. Since these fake USB devices aren't actually talking to the computer at all, the only way to turn it off would be to completely unpower that USB port, which as far as I know there is not usually a way to do in software. I haven't actually tried this myself, but from the research I have done on the topic (to accomplish exactly the same thing as you), you will need: • A USB hub which supports 'per-port power switching' - not many support this • A utility to actually toggle the power Take a look at, he is doing similar things, and includes some background on the topic, a list of supported hubs as well as the C source code to build the utility. I couldn't find any of the USB hubs he had mentioned in the US, and after getting in touch with me confirmed that the D-Link DUB-H7 will work - you can get it on Amazon for example. I haven't yet found a way to do this on Windows, but it looks like you're mostly interest in Linux anyways.

USB charging battery dock simultaneously charges 2 devices via USB ports. Maximum 2 amps shared output. 3 internal charging wall pockets can hold a tablet, phone and/or camera and can charge 2 devices through a USB connection to a 20V MAX Lithium battery pack. Low battery cut-off protection monitors battery voltage to avoid battery over-depletion.

7-port USB hub D-Link DUB_H7 revision 2 (black) does NOT have Per-port power switching, it only supports Ganged power switching. #lsusb -v output shows twice a 4-port hub, here is the output for Hub Descriptor: Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 4 wHubCharacteristic 0x00e0 Ganged power switching Ganged overcurrent protection TT think time 32 FS bits Port indicators bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 100 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power Port 4: 0000.0100 power. This executable displays all USB devices attached to your computer and allows you to disconnect them individually as required.

As noted from the read me: USBDeview is a small utility that lists all USB devices that currently connected to your computer, as well as all USB devices that you previously used. For each USB device, extended information is displayed: Device name/description, device type, serial number (for mass storage devices), the date/time that device was added, VendorID, ProductID, and more. USBDeview also allows you to uninstall USB devices that you previously used, and disconnect USB devices that are currently connected to your computer. You can also use USBDeview on a remote computer, as long as you login to that computer with admin user.

Troubleshooting USB dropouts (Mac) Am I getting USB dropouts? If you're getting audio glitches, clicks or dropouts, then there is a high chance you may be experiencing a USB dropout. A USB dropout may be shown by the USB dropout indicator lighting in your Serato Software however this may not always happen. What is a USB dropout? Your Serato Software will create what's known as an isochronous stream of audio data over the USB bus. That is, it is 'fed' at precise intervals from our USB buffer. If for some reason what is in the buffer can not be fed onto the bus, the USB dropout indicator will light up, and more often than not, you will hear an audible click or glitch in the audio.