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cdc-wdm.h

cdc-wdm.h 676 B
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  1. /*
    2. 

  2.  * USB CDC Device Management userspace API definitions
    3. 

  3.  *
    4. 

  4.  * This program is free software; you can redistribute it and/or
    5. 

  5.  * modify it under the terms of the GNU General Public License
    6. 

  6.  * version 2 as published by the Free Software Foundation.
    7. 

  7.  */
    8. 

  8. 

  9. #ifndef __LINUX_USB_CDC_WDM_H
    10. 

  10. #define __LINUX_USB_CDC_WDM_H
    11. 

  11. 

  12. #include <linux/types.h>
    13. 

  13. 

  14. /*
    15. 

  15.  * This IOCTL is used to retrieve the wMaxCommand for the device,
    16. 

  16.  * defining the message limit for both reading and writing.
    17. 

  17.  *
    18. 

  18.  * For CDC WDM functions this will be the wMaxCommand field of the
    19. 

  19.  * Device Management Functional Descriptor.
    20. 

  20.  */
    21. 

  21. #define IOCTL_WDM_MAX_COMMAND _IOR('H', 0xA0, __u16)
    22. 

  22. 

  23. #endif /* __LINUX_USB_CDC_WDM_H */
    24.