USB definition

SuperDave · Joined: 22 May 2008 Posts: 63 Location: Madison, TN

Where is
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0]
defined?
It's used in class descriptor 1 (HID).

asmboy · Joined: 20 Nov 2007 Posts: 2128 Location: albany ny

search for

USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0]

in the CCS forum files

i got
https://www.ccsinfo.com/forum/viewtopic.php?p=72584
https://www.ccsinfo.com/forum/viewtopic.php?t=36427
https://ccsinfo.com/forum/viewtopic.php?p=61387
https://www.ccsinfo.com/forum/viewtopic.php?t=36884
https://www.ccsinfo.com/forum/viewtopic.php?p=72584

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Or, use a text search utility program such as Examine32, or use the Windows F3 Find feature. Search this CCS directory:

SuperDave · Joined: 22 May 2008 Posts: 63 Location: Madison, TN

One would think that that was the case. I did and I searched previously.

Here what one finds in usb_desc_hid.h searching on USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE at line 186

const int8 USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[USB_NUM_CONFIGURATIONS][1] =
{
//config 1
//interface 0
32
};
Note: USB_NUM_CONFIGURATIONS in this case equals 1, so a quick read looks like the [1][1] value is being set to 32, but in a less than immediately obvious way, this both establishes the "array" with exactly one int8 element which is therefor at [0][0] and sets that value to 32.

Now a lot older and a little bit smarter.

then at line 243
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0], 0x00, //length of report descriptor uses the value.