57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/***************************************************************************
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Copyright 2014 Intel Corporation. All Rights Reserved.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sub license, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice (including the
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next paragraph) shall be included in all copies or substantial portions
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of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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IN NO EVENT SHALL INTEL, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
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THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**************************************************************************/
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#ifndef BACKLIGHT_H
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#define BACKLIGHT_H
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enum backlight_type {
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BL_NONE = -1,
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BL_PLATFORM,
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BL_FIRMWARE,
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BL_RAW,
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BL_NAMED,
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};
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struct backlight {
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char *iface;
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enum backlight_type type;
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int max;
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int pid, fd;
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};
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enum backlight_type backlight_exists(const char *iface);
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int backlight_open(struct backlight *backlight, char *iface);
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int backlight_set(struct backlight *backlight, int level);
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int backlight_get(struct backlight *backlight);
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void backlight_disable(struct backlight *backlight);
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void backlight_close(struct backlight *backlight);
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struct pci_device;
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char *backlight_find_for_device(struct pci_device *pci);
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#endif /* BACKLIGHT_H */
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