From: Philippe Corbes Date: Tue, 31 Aug 2010 17:31:32 +0000 (+0200) Subject: USB: cdc-acm: Add pseudo modem without AT command capabilities X-Git-Tag: firefly_0821_release~10186^2~1023 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=77192da03aee9acb33a7f5f137c0b422565cc7e2;p=firefly-linux-kernel-4.4.55.git USB: cdc-acm: Add pseudo modem without AT command capabilities commit 5b239f0aebd4dd6f85b13decf5e18e86e35d57f0 upstream. cdc-acm.c : Manage pseudo-modem without AT commands capabilities Enable to drive electronic simple gadgets based on microcontrolers. The Interface descriptor is like this: bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 0 None Signed-off-by: Philippe Corbes Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e5aea78b053d..fd3aec7280a0 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1599,6 +1599,10 @@ static struct usb_device_id acm_ids[] = { /* NOTE: non-Nokia COMM/ACM/0xff is likely MSFT RNDIS... NOT a modem! */ + /* control interfaces without any protocol set */ + { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, + USB_CDC_PROTO_NONE) }, + /* control interfaces with various AT-command sets */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, USB_CDC_ACM_PROTO_AT_V25TER) },