On Sat, 17 Jan 2009 19:09:51 +0100 Carsten Meier <cm@xxxxxxxxxx> wrote: > Am Fri, 16 Jan 2009 02:47:50 -0200 > schrieb Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>: > > > For usb devices, usb_make_path() provide a canonical name for the > > device. For PCI ones, we have pci_name() for the same function. in > > the case of pci devices, I suspect that all use pci_name(). We just > > need to use usb_make_path() at the usb ones. > > > > I looked at the sources for what string gets generated for bus_info by > usb_make_path(). If it gets used by pvrusb2, my problems are solved, > because it is constant across standby-wake-up-cycles. The pvrusb2's > implementation currently delivers "usb 7-2 address 6" here. "address > 6" corresponds to devnum which gets constantly increased, which results > in always changing strings here. Sorry for my unneccessary complaints. Mike, Thierry, Jean-Francois, Laurent and others: IMO, we should patch all usb drivers to use usb_make_path(). It will be more transparent to userspace, if all drivers provide the bus_info using the same notation. Comments? Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
