I am attaching the tested patch to the file ifd-ccid.c to add support
for the reader. The reader's USB IDs that I tested with are 0b97:7762
and 0b97:7772. Without this patch the ifd-ccid.c code will not work with
these readers.
The patch is based on the work done in the pcsc-lite project. The patch
is made against openct-0.6.15-svn-r1127. I didn't make corresponding
updates to text configuration files.
Thank you.
--- openct-0.6.15-svn-r1127/src/ifd/ifd-ccid.c 2009-01-29 13:03:01.000000000
-0800
+++ openct-with-fix/src/ifd/ifd-ccid.c 2009-01-29 13:05:00.000000000 -0800
@@ -583,22 +583,50 @@
bEndpointAddress;
}
}
if (ok == 7)
break;
intf = NULL;
}
if (!intf)
continue;
if (!intf->extralen) {
- intf = NULL;
- continue;
+ int i;
+ /* Buggy O2 Micro CCID SC Reader has zero extra
len at interface level but not endpoint descriptor.
+ * Patch the interface level field and proceed.
+ * ProdID 7762 reader is in Dell Latitude D620
and 7772 is in D630.
+ */
+ if( de.idVendor == 0x0b97 && (de.idProduct ==
0x7762 || de.idProduct == 0x7772) ) {
+ ct_error("ccid: extra len is zero,
patching O2 Micro support");
+ for (i=0; i<intf->bNumEndpoints; i++) {
+ /* find the extra[] array */
+ if( intf->endpoint[i].extralen
== 54 ) {
+ /* get the extra[] from
the endpoint */
+ intf->extralen = 54;
+ /* avoid double free on
close, allocate here */
+ intf->extra =
malloc(54);
+ if( intf->extra ) {
+ memcpy(
intf->extra, intf->endpoint[i].extra, 54 );
+ break;
+ }
+ else {
+ intf = NULL;
+ continue;
+ }
+ }
+ }
+ }
+ else {
+ intf = NULL;
+ ct_error("ccid: extra len is zero,
continuing");
+ continue;
+ }
}
r = intf->extralen;
_class = intf->extra;
i = 0;
p = _class + i;
/* 0x21 == USB_TYPE_CLASS | 0x1 */
/* accept descriptor type 0xFF if force_parse != 0 */
while (i < r && p[0] > 2 &&
(p[1] != 0x21 &&
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