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/linux/drivers/ata/pata_parport/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
7 tristate "ATEN EH-100 protocol"
10 This option enables support for the ATEN EH-100 parallel port IDE
21 Series noted on the bottom of the drive. Series 6 drivers will.
24 bottom, enable this option.
33 on the bottom of the drive. Series 5 drivers don't always have it
37 bottom, enable this option.
47 tristate "DataStor EP-2000 protocol"
50 This option enables support for the EP-2000 parallel port IDE
54 tristate "FIT TD-2000 protocol"
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/linux/Documentation/devicetree/bindings/input/
H A Dazoteq,iqs7222.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
21 - azoteq,iqs7222a
22 - azoteq,iqs7222b
23 - azoteq,iqs7222c
24 - azoteq,iqs7222d
29 irq-gpios:
32 Specifies the GPIO connected to the device's active-low RDY output.
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/linux/drivers/net/ethernet/cadence/
H A Dmacb.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2004-2006 Atmel Corporation
88 #define GEM_HS_MAC_CONFIG 0x0050 /* GEM high speed config */
89 #define GEM_HRB 0x0080 /* Hash Bottom */
91 #define GEM_SA1B 0x0088 /* Specific1 Bottom */
93 #define GEM_SA2B 0x0090 /* Specific2 Bottom */
95 #define GEM_SA3B 0x0098 /* Specific3 Bottom */
97 #define GEM_SA4B 0x00A0 /* Specific4 Bottom */
114 #define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */
115 #define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */
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H A Dmacb_main.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2004-2006 Atmel Corporation
10 #include <linux/clk-provider.h>
25 #include <linux/dma-mapping.h>
40 #include <linux/firmware/xlnx-zynqmp.h>
58 * (bp)->rx_ring_size)
64 * (bp)->tx_ring_size)
67 #define MACB_TX_WAKEUP_THRESH(bp) (3 * (bp)->tx_ring_size / 4)
78 …MAX_TX_LEN ((unsigned int)((1 << MACB_TX_FRMLEN_SIZE) - 1) & ~((unsigned int)(MACB_TX_LEN_ALIGN -…
94 * 1 frame time (10 Mbits/s, full-duplex, ignoring collisions)
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/linux/drivers/input/misc/
H A Diqs7222.c1 // SPDX-License-Identifier: GPL-2.0-or-later
116 [IQS7222_REG_GRP_CYCLE] = "cycle-%d",
117 [IQS7222_REG_GRP_CHAN] = "channel-%d",
118 [IQS7222_REG_GRP_SLDR] = "slider-%d",
120 [IQS7222_REG_GRP_GPIO] = "gpio-%d",
150 .name = "event-prox",
155 .name = "event-touch",
162 { .name = "event-press", },
164 .name = "event-tap",
171 .name = "event-swipe-pos",
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/linux/arch/powerpc/platforms/cell/spufs/
H A Dfault.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Low-level SPU handling
26 if (ctx->flags & SPU_CREATE_EVENTS_ENABLED) { in spufs_handle_event()
27 ctx->event_return |= type; in spufs_handle_event()
28 wake_up_all(&ctx->stop_wq); in spufs_handle_event()
37 ctx->ops->restart_dma(ctx); in spufs_handle_event()
48 ctx->ops->npc_read(ctx) - 4); in spufs_handle_event()
55 unsigned long stat = ctx->csa.class_0_pending & CLASS0_INTR_MASK; in spufs_handle_class0()
61 spufs_handle_event(ctx, ctx->csa.class_0_dar, in spufs_handle_class0()
65 spufs_handle_event(ctx, ctx->csa.class_0_dar, in spufs_handle_class0()
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/linux/drivers/hsi/controllers/
H A Domap_ssi.h1 /* SPDX-License-Identifier: GPL-2.0-only */
23 #define SSI_BYTES_TO_FRAMES(x) ((((x) - 1) >> 2) + 1)
28 * struct omap_ssm_ctx - OMAP synchronous serial module (TX/RX) context
50 * struct omap_ssi_port - OMAP SSI port data
66 * @wake_irq: IRQ number for incoming wake line (-1 if none)
67 * @wake_gpio: GPIO number for incoming wake line (-1 if none)
109 * struct gdd_trn - GDD transaction data
119 * struct omap_ssi_controller - OMAP SSI controller data
125 * @gdd_tasklet: bottom half for DMA transfers
131 * @max_speed: Maximum TX speed (Kb/s) set by the clients.
/linux/Documentation/netlabel/
H A Ddraft-ietf-cipso-ipsecurity-01.txt27 Please check the I-D abstract listing contained in each Internet Draft
46 mandatory access controls and multi-level security. These systems are
88 once in a datagram. All multi-octet fields in the option are defined to be
91 +----------+----------+------//------+-----------//---------+
93 +----------+----------+------//------+-----------//---------+
124 corresponding ASCII representations. Non-related groups of systems may
148 actual security information to be passed. All multi-octet fields in a tag
171 +----------+----------+--------//--------+
173 +----------+----------+--------//--------+
207 This is referred to as the "bit-mapped" tag type. Tag type 1 is included
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/linux/drivers/clk/sunxi-ng/
H A Dccu_sdm.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
6 #include <linux/clk-provider.h>
15 if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) in ccu_sdm_helper_is_enabled()
18 if (sdm->enable && !(readl(common->base + common->reg) & sdm->enable)) in ccu_sdm_helper_is_enabled()
21 return !!(readl(common->base + sdm->tuning_reg) & sdm->tuning_enable); in ccu_sdm_helper_is_enabled()
33 if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) in ccu_sdm_helper_enable()
37 for (i = 0; i < sdm->table_size; i++) in ccu_sdm_helper_enable()
38 if (sdm->table[i].rate == rate) in ccu_sdm_helper_enable()
39 writel(sdm->table[i].pattern, in ccu_sdm_helper_enable()
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/linux/arch/x86/mm/
H A Dinit.c28 #include <asm/text-patching.h>
44 * WC and WT fall back to UC-. pat_init() updates these values to support
46 * for the details. Note, __early_ioremap() used during early boot-time
83 * Check that the write-protect PAT entry is set for write-protect.
170 * the 0-ISA_END_ADDRESS range and secondly for the initial PMD_SIZE mapping.
252 /* Except when with PTI where the kernel is mostly non-Global: */ in probe_page_size_mask()
292 boot_cpu_data.microcode < invlpg_miss_match->driver_data) { in setup_pcid()
300 * This can't be cr4_set_bits_and_update_boot() -- the in setup_pcid()
307 * Instead, we brute-force it and set CR4.PCIDE manually in in setup_pcid()
365 if (memblock_is_region_memory(start, end - start)) in adjust_range_page_size_mask()
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/linux/drivers/usb/core/
H A Durb.c1 // SPDX-License-Identifier: GPL-2.0
24 if (urb->transfer_flags & URB_FREE_BUFFER) in urb_destroy()
25 kfree(urb->transfer_buffer); in urb_destroy()
31 * usb_init_urb - initializes a urb so that it can be used by a USB driver
48 kref_init(&urb->kref); in usb_init_urb()
49 INIT_LIST_HEAD(&urb->urb_list); in usb_init_urb()
50 INIT_LIST_HEAD(&urb->anchor_list); in usb_init_urb()
56 * usb_alloc_urb - creates a new urb for a USB driver to use
85 * usb_free_urb - frees the memory used by a urb when all users of it are finished
97 kref_put(&urb->kref, urb_destroy); in usb_free_urb()
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/linux/drivers/gpu/drm/i915/display/
H A Dintel_tv.c2 * Copyright © 2006-2008 Intel Corporation
30 * Integrated TV-out support for the 915GM and 945GM.
136 * ee = 00 = 10^-1 (0.mmmmmmmmm)
137 * ee = 01 = 10^-2 (0.0mmmmmmmmm)
138 * ee = 10 = 10^-3 (0.00mmmmmmmmm)
139 * ee = 11 = 10^-4 (0.000mmmmmmmmm)
142 * eee = 000 = 10^-1 (0.mmmmmmmmm)
143 * eee = 001 = 10^-2 (0.0mmmmmmmmm)
144 * eee = 010 = 10^-3 (0.00mmmmmmmmm)
145 * eee = 011 = 10^-4 (0.000mmmmmmmmm)
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/linux/drivers/cpufreq/
H A Dlonghaul.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2001-2004 Dave Jones.
13 * Present in Samuel 2 (steppings 1-7 only) (C5B), and Ezra (C5C).
16 * It is present in Ezra-T (C5M), Nehemiah (C5X) and above.
90 static char *print_speed(int speed) in print_speed() argument
92 if (speed < 1000) { in print_speed()
93 snprintf(speedbuffer, sizeof(speedbuffer), "%dMHz", speed); in print_speed()
97 if (speed%1000 == 0) in print_speed()
99 "%dGHz", speed/1000); in print_speed()
102 "%d.%dGHz", speed/1000, (speed%1000)/100); in print_speed()
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/linux/drivers/md/persistent-data/
H A Ddm-btree.h1 /* SPDX-License-Identifier: GPL-2.0-only */
10 #include "dm-block-manager.h"
14 /*----------------------------------------------------------------*/
17 * Annotations used to check on-disk metadata is handled as little-endian.
31 /*----------------------------------------------------------------*/
34 * Manipulates hierarchical B+ trees with 64-bit keys and arbitrary-sized
56 * because previously-shared btree nodes have now diverged.
98 * Delete a tree. O(n) - this is the slow one! It can also block, so
104 * All the lookup functions return -ENODATA if the key cannot be found.
114 * Tries to find the first key where the bottom level key is >= to that
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/linux/drivers/net/ethernet/alteon/
H A Dacenic.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright 1998-2002 by Jes Sorensen, <jes@trained-monkey.org>.
13 * about the driver. Send mail to linux-acenic-help@sunsite.auc.dk to
55 #include <linux/dma-mapping.h>
90 #define ACE_IS_TIGON_I(ap) (ap->version == 1)
91 #define ACE_TX_RING_ENTRIES(ap) ap->tx_ring_entries
115 * to care - stinky!
163 #define BOARD_IDX_OVERFLOW -1
188 * the parts dealing with the i2c eeprom on the card ;-)
203 * trace=<val> - Firmware trace level. This requires special traced
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/linux/drivers/net/ethernet/chelsio/cxgb/
H A Dvsc7326_reg.h1 /* SPDX-License-Identifier: GPL-2.0 */
8 * Straight off the data sheet, VMDS-10038 Rev 2.0 and
9 * PD0011-01-14-Meigs-II 2002-12-12
26 #define REG_PLL_CLK_SPEED CRA(0x7,0xf,0x19) /* Clock Speed Selection */
69 * fn = FIFO number, 0-9
72 #define REG_TOP_BOTTOM(ie,fn) CRA(0x2,ie&1,0x10+fn) /* FIFO Buffer Top & Bottom */
84 * bn = bucket number 0-10 (yes, 11 buckets)
114 #define REG_SPI4_DBG_CNT(n) CRA(0x5,0x0,0x10+n) /* Debug counters 0-9 */
133 * tri-speed are only defined with the version that needs a port number.
140 /* 10GbE specific, and different from tri-speed */
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/linux/Documentation/admin-guide/media/
H A Dvivid.rst1 .. SPDX-License-Identifier: GPL-2.0
13 Each input can be a webcam, TV capture device, S-Video capture device or an HDMI
14 capture device. Each output can be an S-Video output device or an HDMI output
23 - Support for read()/write(), MMAP, USERPTR and DMABUF streaming I/O.
24 - A large list of test patterns and variations thereof
25 - Working brightness, contrast, saturation and hue controls
26 - Support for the alpha color component
27 - Full colorspace support, including limited/full RGB range
28 - All possible control types are present
29 - Support for various pixel aspect ratios and video aspect ratios
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/linux/include/linux/
H A Dconsole.h11 * 10-Mar-94: Arno Griffioen: Conversion for vt100 emulator port from PC LINUX
40 * struct consw - callbacks for consoles
49 * (optional -- @con_putcs would be called instead)
52 * @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
73 * @vc->vc_screenbuf. (optional)
74 * @con_save_screen: save screen content into @vc->vc_screenbuf. Called e.g.
85 * @con_debug_leave: restore the console to its pre-debug state as closely as
102 unsigned int bottom, enum con_scroll dir,
160 * enum cons_flags - General console flags
179 * readiness of the per-CPU areas.
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/linux/Documentation/networking/device_drivers/ethernet/3com/
H A Dvortex.rst1 .. SPDX-License-Identifier: GPL-2.0
20 - Andrew Morton
21 - Netdev mailing list <netdev@vger.kernel.org>
22 - Linux kernel mailing list <linux-kernel@vger.kernel.org>
28 Since kernel 2.3.99-pre6, this driver incorporates the support for the
29 3c575-series Cardbus cards which used to be handled by 3c575_cb.c.
33 - 3c590 Vortex 10Mbps
34 - 3c592 EISA 10Mbps Demon/Vortex
35 - 3c597 EISA Fast Demon/Vortex
36 - 3c595 Vortex 100baseTx
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/linux/drivers/staging/most/Documentation/
H A Ddriver_usage.txt5 access a MOST network: The Automotive Information Backbone and the de-facto
6 standard for high-bandwidth automotive multimedia networking.
9 for the efficient and low-cost transport of control, real-time and packet
12 also supports various speed grades up to 150 Mbps.
27 three layers. From bottom up these layers are: the adapter layer, the core
128 - buffer_size
130 - subbuffer_size
131 configure the sub-buffer size for this channel (needed for
133 - num_buffers
135 - datatype
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/linux/drivers/input/mouse/
H A Dbyd.c1 // SPDX-License-Identifier: GPL-2.0-only
38 * Absolute coordinate packets are in the range 0-255 for both X and Y
59 * Swipe gesture from off-pad to on-pad
67 * 1 - 8 : least to most delay
114 * 1 - 7 : least to most sensitive
134 * Sliding speed
135 * 1 - 5 : slowest to fastest
147 * 0 - 7 : smallest to largest width
152 * 0 - 9 : smallest to largest height
157 * 1 - 6 : smallest to largest
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/linux/Documentation/RCU/Design/Expedited-Grace-Periods/
H A DExpedited-Grace-Periods.rst13 There are two flavors of RCU (RCU-preempt and RCU-sched), with an earlier
14 third RCU-bh flavor having been implemented in terms of the other two.
38 RCU-preempt Expedited Grace Periods
41 ``CONFIG_PREEMPTION=y`` kernels implement RCU-preempt.
42 The overall flow of the handling of a given CPU by an RCU-preempt
45 .. kernel-figure:: ExpRCUFlow.svg
59 can check to see if the CPU is currently running in an RCU read-side
63 invocation will provide the needed quiescent-state report.
64 This flag-setting avoids the previous forced preemption of all
65 CPUs that might have RCU read-side critical sections.
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/linux/drivers/gpu/drm/gma500/
H A Dpsb_intel_sdvo.c3 * Copyright © 2006-2007 Intel Corporation
53 #define IS_TV(c) (c->output_flag & SDVO_TV_MASK)
54 #define IS_TMDS(c) (c->output_flag & SDVO_TMDS_MASK)
55 #define IS_LVDS(c) (c->output_flag & SDVO_LVDS_MASK)
56 #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
105 * This is set if we're going to treat the device as TV-out.
108 * to decide this for us, the S-Video output on our HDMI+S-Video card
159 /* add the property for the SDVO-TV */
163 struct drm_property *bottom; member
177 /* add the property for the SDVO-TV/LVDS */
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/linux/Documentation/driver-api/usb/
H A Dgadget.rst11 This document presents a Linux-USB "Gadget" kernel mode API, for use
17 - Supports USB 2.0, for high speed devices which can stream data at
20 - Handles devices with dozens of endpoints just as well as ones with
21 just two fixed-function ones. Gadget drivers can be written so
24 - Flexible enough to expose more complex USB device capabilities such
28 - USB "On-The-Go" (OTG) support, in conjunction with updates to the
29 Linux-USB host side.
31 - Sharing data structures and API models with the Linux-USB host side
32 API. This helps the OTG support, and looks forward to more-symmetric
36 - Minimalist, so it's easier to support new device controller hardware.
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/linux/Documentation/input/devices/
H A Datarikbd.rst12 provides a convenient connection point for a mouse and switch-type joysticks.
13 The ikbd processor also maintains a time-of-day clock with one second
18 The ikbd communicates with the main processor over a high speed bi-directional
41 0xF8-0xFB relative mouse position records (lsbs determined by
43 0xFC time-of-day
67 ---------------------------
92 +127...-128 range, the motion is broken into multiple packets.
97 ---------------------------
104 ---------------------
120 ------------------------
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