Rabu, 01 September 2010

[PATCH] Add pseudo modem without AT command capabilities

From: Philippe Corbes 

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
---

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 1833b3a..a405b1b 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1599,6 +1599,10 @@ static const struct usb_device_id acm_ids[] = {
.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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