3cc3615749
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>
20 lines
578 B
C
20 lines
578 B
C
/*
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* USB CDC Device Management subdriver
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*
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* Copyright (c) 2012 Bjørn Mork <bjorn@mork.no>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*/
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#ifndef __LINUX_USB_CDC_WDM_H
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#define __LINUX_USB_CDC_WDM_H
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extern struct usb_driver *usb_cdc_wdm_register(struct usb_interface *intf,
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struct usb_endpoint_descriptor *ep,
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int bufsize,
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int (*manage_power)(struct usb_interface *, int));
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#endif /* __LINUX_USB_CDC_WDM_H */
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