On Sun, 28 May 2006, Giridhar Pemmasani wrote:
>
> Since 2.6.16-rc1, when RNDIS devices are not configured; when a device
> is attached, following messages are logged by kernel:
>
> usb 1-1: new full speed USB device using uhci_hcd and address 2
> usb 1-1: default language 0x0409
> usb 1-1: new device strings: Mfr=1, Product=2, SerialNumber=3
> usb 1-1: Product: Remote NDIS 802.11 Wireless Adapter
> usb 1-1: Manufacturer: Broadcom
> usb 1-1: SerialNumber: 000000000001
> usb 1-1: uevent
> usb 1-1: device is bus-powered
> usb 1-1: no configuration chosen from 1 choice
>
> It seems to be due to a typo in a conditional (patch against 2.6.17-rc5):
>
> diff -Naur linux-2.6.17-rc5.orig/drivers/usb/core/hub.c
> linux-2.6.17-rc5/drivers/usb/core/hub.c
> --- linux-2.6.17-rc5.orig/drivers/usb/core/hub.c 2006-05-28
> 23:00:42.000000000 +0000
> +++ linux-2.6.17-rc5/drivers/usb/core/hub.c 2006-05-28 23:00:29.000000000
> +0000
> @@ -1231,7 +1231,7 @@
> && desc->bInterfaceClass == USB_CLASS_COMM
> && desc->bInterfaceSubClass == 2
> && desc->bInterfaceProtocol == 0xff) {
> -#ifndef CONFIG_USB_NET_RNDIS
> +#ifndef CONFIG_USB_NET_RNDIS_HOST
> continue;
> #else
> best = c;
Yes, this is a typo. Thanks for spotting it.
> This requires RNDIS host to be compiled into kernel itself - it won't
> work if RNDIS is compiled as module.
Why do you say that? CONFIG_USB_NET_RNDIS_HOST will be set if RNDIS is
configured as a module.
> However, I have been using RNDIS
> devices with ndiswrapper without RNDIS host; for this, following patch
> works:
>
> diff -Naur linux-2.6.17-rc5.orig/drivers/usb/core/hub.c
> linux-2.6.17-rc5/drivers/usb/core/hub.c
> --- linux-2.6.17-rc5.orig/drivers/usb/core/hub.c 2006-05-28
> 23:00:42.000000000 +0000
> +++ linux-2.6.17-rc5/drivers/usb/core/hub.c 2006-05-28 23:02:12.000000000
> +0000
> @@ -1231,11 +1231,7 @@
> && desc->bInterfaceClass == USB_CLASS_COMM
> && desc->bInterfaceSubClass == 2
> && desc->bInterfaceProtocol == 0xff) {
> -#ifndef CONFIG_USB_NET_RNDIS
> - continue;
> -#else
> best = c;
> -#endif
> }
>
> /* From the remaining configs, choose the first one whose
This change isn't needed. If you are using an out-of-tree driver like
ndiswrapper then you can just as easily set up a udev script to install
the configuration you want when the device is probed.
Alan Stern
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