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cdc_ether: Hardwire CDC descriptors when missing 

Just as ActiveSync devices, some regular RNDIS devices also lack
the CDC descriptors (e.g. devices based on BCM4320 WLAN chip).
This patch hardwires the CDC descriptors for all RNDIS style devices
when they are missing.

Signed-off-by: Bjorge Dijkstra <bjd@jooz.net>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Bjorge Dijkstra 2008-01-26 00:50:44 +02:00 committed by David S. Miller
parent 2bfa2e1fec
commit 786e3dfbae
1 changed files with 5 additions and 5 deletions
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10
drivers/net/usb/cdc_ether.c
View File

@ -228,15 +228,16 @@ next_desc:
buf += buf [0];
}
/* Microsoft ActiveSync based RNDIS devices lack the CDC descriptors,
* so we'll hard-wire the interfaces and not check for descriptors.
/* Microsoft ActiveSync based and some regular RNDIS devices lack the
* CDC descriptors, so we'll hard-wire the interfaces and not check
* for descriptors.
*/
if (is_activesync(&intf->cur_altsetting->desc) && !info->u) {
if (rndis && !info->u) {
info->control = usb_ifnum_to_if(dev->udev, 0);
info->data = usb_ifnum_to_if(dev->udev, 1);
if (!info->control || !info->data) {
dev_dbg(&intf->dev,
"activesync: master #0/%p slave #1/%p\n",
"rndis: master #0/%p slave #1/%p\n",
info->control,
info->data);
goto bad_desc;
@ -316,7 +317,6 @@ void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
}
EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
/*-------------------------------------------------------------------------
*
* Communications Device Class, Ethernet Control model