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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-17 09:14:21 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-17 09:14:21 -0700 |
| commit | 32535bd5637d3152f944f124bcc82d498892ba1b (patch) | |
| tree | 99d33b58cfec44f4cf95fad5efa75aea0dd7d60b /drivers/net/usb | |
| parent | 0b623f871d7c993fac8ad7aaaa8f5f3cdb8ed480 (diff) | |
| parent | 3a36dd068f4308461661d28e8e14e11e426eba6b (diff) | |
| download | linux-32535bd5637d3152f944f124bcc82d498892ba1b.tar.gz linux-32535bd5637d3152f944f124bcc82d498892ba1b.tar.xz linux-32535bd5637d3152f944f124bcc82d498892ba1b.zip | |
Merge branch 'v3.5-for-usb' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into usb-next
Diffstat (limited to 'drivers/net/usb')
| -rw-r--r-- | drivers/net/usb/cdc_ether.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 90a30026a931..00880edba048 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -83,6 +83,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) struct cdc_state *info = (void *) &dev->data; int status; int rndis; + bool android_rndis_quirk = false; struct usb_driver *driver = driver_of(intf); struct usb_cdc_mdlm_desc *desc = NULL; struct usb_cdc_mdlm_detail_desc *detail = NULL; @@ -195,6 +196,11 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) info->control, info->u->bSlaveInterface0, info->data); + /* fall back to hard-wiring for RNDIS */ + if (rndis) { + android_rndis_quirk = true; + goto next_desc; + } goto bad_desc; } if (info->control != intf) { @@ -271,11 +277,15 @@ next_desc: /* Microsoft ActiveSync based and some regular RNDIS devices lack the * CDC descriptors, so we'll hard-wire the interfaces and not check * for descriptors. + * + * Some Android RNDIS devices have a CDC Union descriptor pointing + * to non-existing interfaces. Ignore that and attempt the same + * hard-wired 0 and 1 interfaces. */ - if (rndis && !info->u) { + if (rndis && (!info->u || android_rndis_quirk)) { info->control = usb_ifnum_to_if(dev->udev, 0); info->data = usb_ifnum_to_if(dev->udev, 1); - if (!info->control || !info->data) { + if (!info->control || !info->data || info->control != intf) { dev_dbg(&intf->dev, "rndis: master #0/%p slave #1/%p\n", info->control, |