[argyllcms] Re: HID issue with libusb on Huey
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sat, 15 Dec 2007 15:53:27 +1100
Here's a patch for spectro/usbio.c that should
address this issue. The question remains, if the
device has the right permissions to be opened by
the user, is there any remaining problem with
calling usb_detach_kernel_driver_np() ?
Graeme Gill.
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*** usbio.old.c Fri Oct 19 23:40:19 2007
--- usbio.new.c Sat Dec 15 15:46:07 2007
***************
*** 397,402 ****
--- 397,408 ----
p->cnfg = config;
p->uflags = usbflags;
+ #if LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP == 1
+ if (p->uflags & icomuf_detach) {
+ usb_detach_kernel_driver_np(p->usbh, 0);
+ }
+ #endif
+
/* (Should use bConfigurationValue ?) */
if ((rv = usb_set_configuration(p->usbh, p->cnfg)) < 0)
error("Configuring USB port '%s' to %d failed with %d
(%s)",p->ppath->path,config,rv,usb_strerror());
***************
*** 410,421 ****
for (iface = 0; iface < p->nifce; iface++) {
/* (Second parameter is bInterfaceNumber) */
- #if LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP == 1
- if (p->uflags & icomuf_detach) {
- usb_detach_kernel_driver_np(p->usbh, iface);
- }
- #endif
-
if ((rv = usb_claim_interface(p->usbh, iface)) < 0)
error("Claiming USB port '%s' interface %d failed with
%d",p->ppath->path,iface,rv);
--- 416,421 ----
------------------------------------- cut here
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