Date: Fri, 20 Aug 2004 14:49:44 +0900 From: takawata@jp.freebsd.org To: takawata@jp.freebsd.org Cc: freebsd-hackers@freebsd.org Subject: Re: How can I fake a device ? Message-ID: <200408200549.OAA02607@axe-inc.co.jp> In-Reply-To: Your message of "Fri, 20 Aug 2004 07:01:13 %2B0300." <41257789.70508@OTEL.net>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <41257789.70508@OTEL.net>, Iasen Kostov wrote: > Hi, >I want to know is there a way to call *_probe (for device driver) with >fake (PCI) device that does not exists in the system ? >First of all a cant find how "struct device" is declared (i've searched >even the compile/ dir) and second I think that I'll need to intercept >pci_get_vendor and pci_get_device funcs with my own which should detect >the fake device and thus will return vandor/device that I need to fake. >I realy don't need anything else except _probe ... I have never tried such but grimpsed the PCI framework, I propose the following, though I don't imagine why you want to do so: Your driver have to contain DEVICE_IDENTIFY method that calls device_add_child to allocate device_t object. Then you allocate 'struct pci_devinfo' and initialize pci_devinfo as you like. And you have to make your driver as a module. Then a device object will show up on the device tree on your system. You may want to have a look at pci_add_children@/sys/dev/pci/pci.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200408200549.OAA02607>