1 // SPDX-License-Identifier: GPL-2.0
9  * Usage is simple, allocate a new id to the stub driver and bind the
12  * # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/new_id
13  * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/e1000e/unbind
14  * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/pci-stub/bind
15  * # ls -l /sys/bus/pci/devices/0000:00:19.0/driver
16  * .../0000:00:19.0/driver -> ../../../bus/pci/drivers/pci-stub
26 		 "\"vendor:device[:subvendor[:subdevice[:class[:class_mask]]]]\""
29 static int pci_stub_probe(struct pci_dev *dev, const struct pci_device_id *id)  in pci_stub_probe()  argument
36 	.name		= "pci-stub",
37 	.id_table	= NULL,	/* only dynamic id's */
43 	char *p, *id;  in pci_stub_init()  local
56 	while ((id = strsep(&p, ","))) {  in pci_stub_init()
57 		unsigned int vendor, device, subvendor = PCI_ANY_ID,  in pci_stub_init()  local
61 		if (!strlen(id))  in pci_stub_init()
64 		fields = sscanf(id, "%x:%x:%x:%x:%x:%x",  in pci_stub_init()
65 				&vendor, &device, &subvendor, &subdevice,  in pci_stub_init()
69 			pr_warn("pci-stub: invalid ID string \"%s\"\n", id);  in pci_stub_init()
73 		pr_info("pci-stub: add %04X:%04X sub=%04X:%04X cls=%08X/%08X\n",  in pci_stub_init()
74 		       vendor, device, subvendor, subdevice, class, class_mask);  in pci_stub_init()
76 		rc = pci_add_dynid(&stub_driver, vendor, device,  in pci_stub_init()
79 			pr_warn("pci-stub: failed to add dynamic ID (%d)\n",  in pci_stub_init()
95 MODULE_AUTHOR("Chris Wright <chrisw@sous-sol.org>");