Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: USBGetManufacturerStringIndex... Indices in general

ben-

I wanted to add just a bit to what Barry said. In the OSX IOUSBFamily, the IOUSBHIDDriver contains calls such as GetManufacturerString, GetProductString, and GetSerialNumberString. While these are not yet available from user space, looking at the code shows that they resolve down to IOUSBDevice::GetStringDescriptor which not only gets the raw unicode string, but converts it to a regular, null terminated string that is suitable for display, and leaves it in a buffer that you provide.

-Keithen

At 10:44 AM -0800 3/11/02, Barry Twycross wrote: 
At 1:04 AM +0000 3/11/02, hotblack wrote:

When issuing the USBGetManufacturerStringIndex call (and others that use UInt8 indices) how do I display the string? Where is the string actually stored?

The string is stored in the device. It is retrieved by a GET_DESCRIPTOR device request, see chapter 9 of the USB spec. The string is in Unicode format.

How you'd do anything about this in X I don't know yet. 

--
_______________________________________________
usb mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/usb
Do not post admin requests to the list. They will be ignored.
References: 
 >USBGetManufacturerStringIndex... Indices in general (From: hotblack <email@hidden>)
 >Re: USBGetManufacturerStringIndex... Indices in general (From: Barry Twycross <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.