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/linux/drivers/media/i2c/
H A Dsaa711x_regs.h250 "Luminance control"},
252 "Luminance brightness control"},
254 "Luminance contrast control"},
415 "Task A: Luminance brightness control"},
417 "Task A: Luminance contrast control"},
424 "Task A: Horizontal luminance scaling increment"},
426 "Task A: Horizontal luminance phase offset"},
436 "Task A: Vertical luminance scaling increment"},
451 "Task A: Vertical luminance phase offset '00'"},
453 "Task A: Vertical luminance phase offset '01'"},
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H A Dtvp5150_reg.h27 #define TVP5150_LUMA_PROC_CTL_1 0x07 /* Luminance processing control #1 */
28 #define TVP5150_LUMA_PROC_CTL_2 0x08 /* Luminance processing control #2 */
34 #define TVP5150_LUMA_PROC_CTL_3 0x0e /* Luminance processing control #3 */
/linux/Documentation/ABI/testing/
H A Dsysfs-driver-wacom28 Writing to this file sets the status LED luminance (1..127)
30 button is pressed on the stylus. This luminance level is
38 Writing to this file sets the status LED luminance (1..127)
65 Writing to this file sets the overall luminance level (0..15)
/linux/Documentation/userspace-api/media/v4l/
H A Dcolorspaces-details.rst67 The luminance (Y') and color difference (Cb and Cr) are obtained with
143 The luminance (Y') and color difference (Cb and Cr) are obtained with
266 The luminance (Y') and color difference (Cb and Cr) are obtained with
335 The luminance (Y') and color difference (Cb and Cr) are obtained with
406 The luminance (Y') and color difference (Cb and Cr) are obtained with
420 There is also an alternate constant luminance R'G'B' to Yc'CbcCrc
554 The luminance (Y') and color difference (Cb and Cr) are obtained with
628 The luminance (Y') and color difference (Cb and Cr) are obtained with
699 The luminance (Y') and color difference (Cb and Cr) are obtained with
767 functions: the linear RGB values [0…1] of HDR content map to a luminance range
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H A Dcolorspaces.rst49 The Y value in the CIE XYZ colorspace corresponds to luminance. Often
58 define a color without the luminance component Y. It is very confusing
62 colorspace. Also, y has nothing to do with luminance. Together x and y
63 specify a color, and Y the luminance. That is really all you need to
111 human eye is more sensitive to differences in luminance than in color
H A Dext-ctrls-jpeg.rst51 - Use only luminance component.
70 without a need for direct reconfiguration of luminance and chrominance
H A Dcolorspaces-defs.rst127 - Use the default non-constant luminance BT.2020 Y'CbCr encoding.
129 - Use the constant luminance BT.2020 Yc'CbcCrc encoding.
H A Dyuv-formats.rst26 advantage of the human eye being more sensitive to luminance than color
/linux/Documentation/userspace-api/media/drivers/
H A Dccs.rst105 using ``V4L2_CID_CCS_SHADING_CORRECTION``. Additionally, the luminance
108 correction and 128 indicates correcting the luminance in corners to 10 % less
111 Shading correction needs to be enabled for luminance correction level to have an
/linux/drivers/media/usb/gspca/
H A Dsn9c2028.h16 0x00, /* avg luminance lower 8 bit */
17 0x00, /* avg luminance higher 8 bit */
H A Dspca506.c349 spca506_WriteI2c(gspca_dev, 0x03, 0x09); /* Luminance Control */ in sd_start()
351 /* Luminance Brightness */ in sd_start()
352 spca506_WriteI2c(gspca_dev, 0x47, 0x0b); /* Luminance Contrast */ in sd_start()
H A Dzc3xx-reg.h216 /* Luminance gamma */
/linux/drivers/media/platform/ti/omap3isp/
H A Dispresizer.h46 RSZ_THE_SAME = 0, /* Chrominance the same as Luminance */
65 * Structure for luminance enhancer parameters.
H A Dluma_enhance_table.h5 * TI OMAP3 ISP - Luminance enhancement table
/linux/drivers/gpu/drm/amd/display/modules/power/
H A Dpower_abm.c657 * a. luminance should be in ascending order and in validate_ext_backlight_caps()
671 unsigned int luminance = ext_backlight_caps->data_points[i].luminance; in validate_ext_backlight_caps() local
674 if ((luminance <= last_luminance) || (luminance > BL_DATA_POINTS)) in validate_ext_backlight_caps()
681 last_luminance = luminance; in validate_ext_backlight_caps()
746 unsigned int luminance = in initialize_backlight_caps() local
747 ext_backlight_caps->data_points[i].luminance; in initialize_backlight_caps()
752 /* Since luminance is a percentage, scale it by num_levels*/ in initialize_backlight_caps()
753 luminance = (luminance * num_levels) / 101; in initialize_backlight_caps()
756 if (index < luminance) { in initialize_backlight_caps()
762 luminance - index + 1; in initialize_backlight_caps()
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/linux/drivers/media/platform/samsung/s5p-jpeg/
H A Djpeg-regs.h376 /* JPEG DC luminance (code length) Huffman table register */
379 /* JPEG DC luminance (values) Huffman table register */
388 /* JPEG AC luminance (code length) Huffman table register */
391 /* JPEG AC luminance (values) Huffman table register */
H A Djpeg-core.h247 * @y: luminance plane physical address
/linux/drivers/media/platform/samsung/s3c-camif/
H A Dcamif-core.h89 * @ybpp: number of luminance bytes per pixel
311 * @y: luminance plane dma address
/linux/drivers/gpu/drm/i915/display/
H A Dintel_dp_aux_backlight.c266 "Content Luminance DPCD reg write failed, err:-%d\n", in intel_dp_aux_write_content_luminance()
400 "Panel Luminance DPCD reg write failed, err:-%d\n", in intel_dp_aux_write_panel_luminance_override()
463 "[CONNECTOR:%d:%s] Failed to read Luminance from DPCD\n", in intel_dp_aux_vesa_get_backlight()
650 "[CONNECTOR:%d:%s] AUX Luminance Based Backlight Control Supported!\n", in intel_dp_aux_supports_vesa_backlight()
/linux/include/drm/
H A Ddrm_connector.h424 * struct drm_luminance_range_info - Panel's luminance range for
427 * This struct is used to store a luminance range supported by panel
430 * @min_luminance: This is the min supported luminance value
432 * @max_luminance: This is the max supported luminance value
503 * ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format
787 * @luminance_range1: Luminance for max back light
792 * @luminance_range2: Luminance for min back light
941 * @luminance_range: Luminance range supported by panel
H A Ddrm_fourcc.h162 * format with data laid in two planes (luminance and chrominance)
/linux/drivers/video/backlight/
H A Dpwm_bl.c136 #define PWM_LUMINANCE_SCALE (1 << PWM_LUMINANCE_SHIFT) /* luminance scale */
146 * Where Y is the luminance, the amount of light coming out of the screen, and
/linux/drivers/media/usb/pwc/
H A Dpwc.h142 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
/linux/drivers/gpu/drm/mcde/
H A Dmcde_display_regs.h274 #define MCDE_TVBLU_TVBLU_SHIFT 0 /* 8 bits luminance */
/linux/Documentation/userspace-api/media/mediactl/
H A Dmedia-types.rst108 its component parts, luminance and chrominance, and output it in

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