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Device unload code is broken, disabled. Requires a bit of redesign on the

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part of the uhub driver to be able to fix it. Modules should not be
unloaded as they unload partially. Not easy to fix either.
This commit is contained in:
Nick Hibma 1999-02-21 16:36:30 +00:00
parent 5ff4109e0c
commit f96f6ae5d8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=44190
1 changed files with 16 additions and 5 deletions
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21
sys/dev/usb/usbdi.c
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@ -1224,18 +1224,26 @@ usbd_print_child(device_t parent, device_t child)
int
usbd_driver_load(module_t mod, int what, void *arg)
{
#if 1
return 0;
#else
devclass_t usb_devclass = devclass_find("usb");
devclass_t ugen_devclass = devclass_find("ugen");
device_t *devlist;
int devcount;
int error;
switch (what) {
case MOD_LOAD:
case MOD_UNLOAD:
if ( what == MOD_LOAD || what == MOD_UNLOAD ) {
if (!usb_devclass)
return 0; /* just ignore call */
/* Detach all the generic devices and do a reconfigure
* of the bus. This should attach the new driver to anything
* that is already connected and it can handle.
* XXX For the moment disabled. The detach does not remove
* the device from the list of devices attached to the hub.
* Legacy of converting from NetBSD to FreeBSD.
*/
if (ugen_devclass) {
/* detach devices from generic driver if possible */
error = devclass_get_devices(ugen_devclass, &devlist,
@ -1243,8 +1251,11 @@ usbd_driver_load(module_t mod, int what, void *arg)
if (!error)
for (devcount--; devcount >= 0; devcount--)
(void)DEVICE_DETACH(devlist[devcount]);
free(devlist, M_TEMP);
}
/* Reconfigure the busses, possibly attaching something to the
* new driver */
error = devclass_get_devices(usb_devclass, &devlist, &devcount);
if (error)
return 0; /* XXX maybe transient, or error? */
@ -1253,10 +1264,10 @@ usbd_driver_load(module_t mod, int what, void *arg)
USB_RECONFIGURE(devlist[devcount]);
free(devlist, M_TEMP);
return 0;
}
return 0; /* nothing to do by us */
return 0; /* nothing to do */
#endif
}
/* Set the description of the device including a malloc and copy. */