Re: Control USB Power
On Jun 12, 2008, at 10:38 PM, Omar Qazi wrote: I have a Cocoa application that controls an external USB device. I want to be able to turn the device off when the user performs some action, like click a button. Is there a way in Cocoa or IOKit to disable power to a USB Socket? The application runs on Leopard. Are you really sure you want to turn off the USB socket itself? It would seem to me that you really want to use a device that has software control over its power state instead and that you would just send the proper message to turn it on or off rather than turning off the USB socket. That said, I have no idea if what you are asking is possible... -- David Duncan Apple DTS Animation and Printing [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Control USB Power
I assume you are talking about an external piece of equipment, not a USB hub etc. Some pieces of equipment have USB interfaces, but I suspect many can not turn themselves on and off in response to a USB command. Macs can, but that may be rare. Even so it would be worth checking the manual. Otherwise you may have to look at USB-controlled solenoid drivers. You'll need software too, but some like http://www.phidgets.com/ do have Mac drivers. Rob On 12-Jun-08, at 10:38 PM, Omar Qazi wrote: Hey, I have a Cocoa application that controls an external USB device. I want to be able to turn the device off when the user performs some action, like click a button. Is there a way in Cocoa or IOKit to disable power to a USB Socket? The application runs on Leopard. Thanks in advance, Omar Qazi Hello, Galaxy!___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rdouglas%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Control USB Power
Hey, I have a Cocoa application that controls an external USB device. I want to be able to turn the device off when the user performs some action, like click a button. Is there a way in Cocoa or IOKit to disable power to a USB Socket? The application runs on Leopard. Thanks in advance, Omar Qazi Hello, Galaxy! smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
