diff options
| author |   Bjørn Mork <bjorn@mork.no> | 2012-03-06 17:29:22 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-08 13:06:48 -0800 |
| commit | 3cc3615749dbd1b891512d5c9a5bf4559cfa9741 (patch) | |
| tree | 9e6d3b095c521d7114ac0b74ee280b31d2809d94 /include | |
| parent | usb: cdc-wdm: adding list lookup indirection (diff) | |
| download | linux-dev-3cc3615749dbd1b891512d5c9a5bf4559cfa9741.tar.xz linux-dev-3cc3615749dbd1b891512d5c9a5bf4559cfa9741.zip | |
usb: cdc-wdm: adding usb_cdc_wdm_register subdriver support
This driver can be used as a subdriver of another USB driver, allowing
it to export a Device Managment interface consisting of a single interrupt
endpoint with no dedicated USB interface.
Some devices provide a Device Management function combined with a wwan
function in a single USB interface having three endpoints (bulk in/out
+ interrupt). If the interrupt endpoint is used exclusively for DM
notifications, then this driver can support that as a subdriver
provided that the wwan driver calls the appropriate entry points on
probe, suspend, resume, pre_reset, post_reset and disconnect.
The main driver must have full control over all interface related
settings, including the needs_remote_wakeup flag. A manage_power
function must be provided by the main driver.
A manage_power stub doing direct flag manipulation is used in normal
driver mode.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/cdc-wdm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/usb/cdc-wdm.h b/include/linux/usb/cdc-wdm.h new file mode 100644 index 000000000000..719c332620fa --- /dev/null +++ b/include/linux/usb/cdc-wdm.h @@ -0,0 +1,19 @@ +/* + * USB CDC Device Management subdriver + * + * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + */ + +#ifndef __LINUX_USB_CDC_WDM_H +#define __LINUX_USB_CDC_WDM_H + +extern struct usb_driver *usb_cdc_wdm_register(struct usb_interface *intf, + struct usb_endpoint_descriptor *ep, + int bufsize, + int (*manage_power)(struct usb_interface *, int)); + +#endif /* __LINUX_USB_CDC_WDM_H */ |