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From linux-usb-owner@vger.kernel.org Wed Sep 1 18:10:45 2010
Date: Tue, 31 Aug 2010 19:31:32 +0200
Message-ID: <AANLkTinezH-sqVzfzCZ8qjXrmaDXuwBRvRWYSN2Jw72+@mail.gmail.com>
Subject: USB: cdc-acm: Add pseudo modem without AT command capabilities
From: Philippe Corbes <philippe.corbes@gmail.com>
To: linux-usb@vger.kernel.org
From: Philippe Corbes <philippe.corbes@gmail.com>
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 <philippe.corbes@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/class/cdc-acm.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1615,6 +1615,10 @@ static const struct usb_device_id acm_id
.driver_info = 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) },
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