132     if (!pci_sys)  in pci_device_vgaarb_init()
135     if ((pci_sys->vgaarb_fd = open ("/dev/vga_arbiter", O_RDWR)) < 0) {  in pci_device_vgaarb_init()
139     ret = read(pci_sys->vgaarb_fd, buf, BUFSIZE);  in pci_device_vgaarb_init()
147     rsrc = parse_string_to_decodes_rsrc(buf, &pci_sys->vga_count, &match);  in pci_device_vgaarb_init()
149 …pci_sys->vga_default_dev = pci_device_find_by_slot(match.domain, match.bus, match.dev, match.func);  in pci_device_vgaarb_init()
151     if (pci_sys->vga_default_dev)  in pci_device_vgaarb_init()
152         pci_sys->vga_default_dev->vgaarb_rsrc = rsrc;  in pci_device_vgaarb_init()
159     if (!pci_sys)  in pci_device_vgaarb_fini()
162     close(pci_sys->vgaarb_fd);  in pci_device_vgaarb_fini()
235         dev = pci_sys->vga_default_dev;  in pci_device_vgaarb_set_target()
242     ret = vgaarb_write(pci_sys->vgaarb_fd, buf, len);  in pci_device_vgaarb_set_target()
246     ret = read(pci_sys->vgaarb_fd, buf, BUFSIZE);  in pci_device_vgaarb_set_target()
252     dev->vgaarb_rsrc = parse_string_to_decodes_rsrc(buf, &pci_sys->vga_count, NULL);  in pci_device_vgaarb_set_target()
253     pci_sys->vga_target = dev;  in pci_device_vgaarb_set_target()
263     struct pci_device *dev = pci_sys->vga_target;  in pci_device_vgaarb_decodes()
271     ret = vgaarb_write(pci_sys->vgaarb_fd, buf, len);  in pci_device_vgaarb_decodes()
275     ret = read(pci_sys->vgaarb_fd, buf, BUFSIZE);  in pci_device_vgaarb_decodes()
281     parse_string_to_decodes_rsrc(buf, &pci_sys->vga_count, NULL);  in pci_device_vgaarb_decodes()
291     struct pci_device *dev = pci_sys->vga_target;  in pci_device_vgaarb_lock()
296     if (dev->vgaarb_rsrc == 0 || pci_sys->vga_count == 1)  in pci_device_vgaarb_lock()
301     return vgaarb_write(pci_sys->vgaarb_fd, buf, len);  in pci_device_vgaarb_lock()
309     struct pci_device *dev = pci_sys->vga_target;  in pci_device_vgaarb_trylock()
314     if (dev->vgaarb_rsrc == 0 || pci_sys->vga_count == 1)  in pci_device_vgaarb_trylock()
319     return vgaarb_write(pci_sys->vgaarb_fd, buf, len);  in pci_device_vgaarb_trylock()
327     struct pci_device *dev = pci_sys->vga_target;  in pci_device_vgaarb_unlock()
332     if (dev->vgaarb_rsrc == 0 || pci_sys->vga_count == 1)  in pci_device_vgaarb_unlock()
337     return vgaarb_write(pci_sys->vgaarb_fd, buf, len);  in pci_device_vgaarb_unlock()
342     *vga_count = pci_sys->vga_count;  in pci_device_vgaarb_get_info()