diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 13 | ||||
| -rw-r--r-- | drivers/usb/class/cdc-acm.h | 1 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 58754b508a0..395a347f2eb 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -853,7 +853,7 @@ static int acm_probe(struct usb_interface *intf, u8 ac_management_function = 0; u8 call_management_function = 0; int call_interface_num = -1; - int data_interface_num; + int data_interface_num = -1; unsigned long quirks; int num_rx_buf; int i; @@ -937,7 +937,11 @@ next_desc: if (!union_header) { if (call_interface_num > 0) { dev_dbg(&intf->dev, "No union descriptor, using call management descriptor\n"); - data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = call_interface_num)); + /* quirks for Droids MuIn LCD */ + if (quirks & NO_DATA_INTERFACE) + data_interface = usb_ifnum_to_if(usb_dev, 0); + else + data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = call_interface_num)); control_interface = intf; } else { if (intf->cur_altsetting->desc.bNumEndpoints != 3) { @@ -1535,6 +1539,11 @@ static const struct usb_device_id acm_ids[] = { .driver_info = NOT_A_MODEM, }, + /* Support for Droids MuIn LCD */ + { USB_DEVICE(0x04d8, 0x000b), + .driver_info = NO_DATA_INTERFACE, + }, + /* control interfaces without any protocol set */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, USB_CDC_PROTO_NONE) }, diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 7b5c0bd07f8..ca7937f26e2 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -126,3 +126,4 @@ struct acm { #define SINGLE_RX_URB 2 #define NO_CAP_LINE 4 #define NOT_A_MODEM 8 +#define NO_DATA_INTERFACE 16 |