| /Linux-v6.6/io_uring/ |
| D | poll.c | 8 #include <linux/poll.h>
20 #include "poll.h"
38 /* output value, set only if arm poll returns >0 */
90 * arming poll and wakeups.
106 /* pure poll stashes this in ->async_data, poll driven retry elsewhere */ in io_poll_get_double()
116 return &req->apoll->poll; in io_poll_get_single()
170 static void io_init_poll_iocb(struct io_poll *poll, __poll_t events) in io_init_poll_iocb() argument
172 poll->head = NULL; in io_init_poll_iocb()
175 poll->events = events | IO_POLL_UNMASK; in io_init_poll_iocb()
176 INIT_LIST_HEAD(&poll->wait.entry); in io_init_poll_iocb()
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| /Linux-v6.6/Documentation/userspace-api/media/v4l/ |
| D | func-poll.rst | 4 .. _func-poll:
7 V4L2 poll()
13 v4l2-poll - Wait for some event on a file descriptor
20 #include <sys/poll.h>
22 .. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
31 With the :c:func:`poll()` function applications can suspend execution
44 On success :c:func:`poll()` returns the number of file descriptors
52 :ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>` the :c:func:`poll()`
57 :c:func:`poll()` function succeeds and sets the ``POLLERR`` flag in
59 :c:func:`poll()` to succeed as well, but it sets the ``POLLOUT`` and
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| /Linux-v6.6/drivers/tty/vt/ |
| D | vc_screen.c | 44 #include <linux/poll.h>
89 struct vcs_poll_data *poll = in vcs_notifier() local
91 int currcons = poll->cons_num; in vcs_notifier()
112 poll->event = code; in vcs_notifier()
113 wake_up_interruptible(&poll->waitq); in vcs_notifier()
114 kill_fasync(&poll->fasync, SIGIO, fa_band); in vcs_notifier()
119 vcs_poll_data_free(struct vcs_poll_data *poll) in vcs_poll_data_free() argument
121 unregister_vt_notifier(&poll->notifier); in vcs_poll_data_free()
122 kfree(poll); in vcs_poll_data_free()
128 struct vcs_poll_data *poll = file->private_data, *kill = NULL; in vcs_poll_data_get() local
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| /Linux-v6.6/Documentation/devicetree/bindings/serial/ |
| D | pl011.yaml | 78 auto-poll:
83 poll-rate-ms:
85 Rate at which poll occurs when auto-poll is set.
89 poll-timeout-ms:
91 Poll timeout when auto-poll is set, default
110 poll-rate-ms: [ auto-poll ]
111 poll-timeout-ms: [ auto-poll ]
|
| /Linux-v6.6/Documentation/userspace-api/media/mediactl/ |
| D | request-func-poll.rst | 4 .. _request-func-poll:
7 request poll()
13 request-poll - Wait for some event on a file descriptor
20 #include <sys/poll.h>
22 .. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
39 With the :c:func:`poll()` function applications can wait
42 On success :c:func:`poll()` returns the number of file
50 Attempting to poll for a request that is not yet queued will
56 On success, :c:func:`poll()` returns the number of
|
| /Linux-v6.6/include/trace/events/ |
| D | scmi.h | 37 bool poll),
38 TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll),
45 __field(bool, poll)
53 __entry->poll = poll;
56 TP_printk("pt=%02X msg_id=%02X seq=%04X transfer_id=%X poll=%u",
58 __entry->transfer_id, __entry->poll)
63 u32 timeout, bool poll),
64 TP_ARGS(transfer_id, msg_id, protocol_id, seq, timeout, poll),
72 __field(bool, poll)
81 __entry->poll = poll;
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| /Linux-v6.6/arch/um/os-Linux/ |
| D | sigio.c | 9 #include <poll.h>
38 struct pollfd *poll; member
61 n = poll(fds->poll, fds->used, -1); in write_sigio_thread()
65 printk(UM_KERN_ERR "write_sigio_thread : poll returned " in write_sigio_thread()
69 p = &fds->poll[i]; in write_sigio_thread()
88 memmove(&fds->poll[i], &fds->poll[i + 1], in write_sigio_thread()
89 (fds->used - i) * sizeof(*fds->poll)); in write_sigio_thread()
117 memcpy(new, polls->poll, polls->used * sizeof(struct pollfd)); in need_poll()
118 kfree(polls->poll); in need_poll()
120 polls->poll = new; in need_poll()
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| /Linux-v6.6/Documentation/userspace-api/media/cec/ |
| D | cec-func-poll.rst | 4 .. _cec-func-poll:
7 cec poll()
13 cec-poll - Wait for some event on a file descriptor
20 #include <sys/poll.h>
22 .. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
39 With the :c:func:`poll()` function applications can wait for CEC
42 On success :c:func:`poll()` returns the number of file descriptors
53 For more details see the :c:func:`poll()` manual page.
58 On success, :c:func:`poll()` returns the number structures which have
|
| /Linux-v6.6/include/linux/ |
| D | poll.h | 12 #include <uapi/linux/poll.h>
33 * structures and helpers for f_op->poll implementations
53 * Return true if it is guaranteed that poll will not wait. This is the case
54 * if the poll() of another file descriptor in the set got an event, so there
63 * Return the set of events that the application wants to poll for.
65 * to be started implicitly on poll(). You typically only want to do that
81 return file->f_op->poll; in file_can_poll()
86 if (unlikely(!file->f_op->poll)) in vfs_poll()
88 return file->f_op->poll(file, pt); in vfs_poll()
99 * Structures and helpers for select/poll syscall
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| D | iopoll.h | 17 * read_poll_timeout - Periodically poll an address until a condition is
27 * @args: arguments for @op poll
62 * read_poll_timeout_atomic - Periodically poll an address until a condition is
72 * @args: arguments for @op poll
117 * readx_poll_timeout - Periodically poll an address until a condition is met or a timeout occurs
119 * @addr: Address to poll
138 …* readx_poll_timeout_atomic - Periodically poll an address until a condition is met or a timeout o…
140 * @addr: Address to poll
|
| /Linux-v6.6/Documentation/networking/ |
| D | napi.rst | 16 interrupts first (:ref:`busy polling<poll>`).
29 and the associated poll method. struct napi_struct holds the state
45 A disabled NAPI can't be scheduled and its poll method is guaranteed
57 napi_schedule() is the basic method of scheduling a NAPI poll.
62 Later, after NAPI is scheduled, the driver's poll method will be
69 packets driver can process in a single poll. Rx specific APIs like page
79 The poll method returns the amount of work done. If the driver still
81 the poll method should return exactly ``budget``. In that case,
86 processed) the poll method should call napi_complete_done()
104 of calls. The poll method may be called without the driver scheduling
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| /Linux-v6.6/drivers/iio/common/hid-sensors/ |
| D | hid-sensor-attributes.c | 160 st->poll.report_id, in hid_sensor_read_poll_value()
161 st->poll.index, sizeof(value), &value); in hid_sensor_read_poll_value()
166 if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_read_poll_value()
181 st->poll.report_id, in hid_sensor_read_samp_freq_value()
182 st->poll.index, sizeof(value), &value); in hid_sensor_read_samp_freq_value()
187 if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND) in hid_sensor_read_samp_freq_value()
189 else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_read_samp_freq_value()
212 if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND) in hid_sensor_write_samp_freq_value()
214 else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_write_samp_freq_value()
219 ret = sensor_hub_set_feature(st->hsdev, st->poll.report_id, in hid_sensor_write_samp_freq_value()
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| /Linux-v6.6/tools/testing/selftests/pidfd/ |
| D | pidfd_poll_test.c | 6 #include <poll.h>
44 ksft_print_msg("running pidfd poll test for %d iterations\n", in main()
86 nevents = poll(&fds, 1, -1); in main()
90 ksft_exit_fail_msg("%s - poll failed\n", in main()
94 ksft_exit_fail_msg("unexpected poll result: %d\n", in main()
114 ksft_test_result_pass("pidfd poll test: pass\n"); in main()
|
| /Linux-v6.6/arch/arm/boot/dts/microchip/ |
| D | at91-natte.dtsi | 74 poll-interval = <20000>;
90 poll-interval = <20000>;
106 poll-interval = <20000>;
122 poll-interval = <20000>;
138 poll-interval = <20000>;
154 poll-interval = <20000>;
170 poll-interval = <20000>;
186 poll-interval = <20000>;
|
| /Linux-v6.6/lib/ |
| D | stmp_device.c | 22 * Clear the bit and poll it cleared. This is usually called with
43 /* clear and poll SFTRST */ in stmp_reset_block()
55 /* poll CLKGATE becoming set */ in stmp_reset_block()
61 /* clear and poll SFTRST */ in stmp_reset_block()
66 /* clear and poll CLKGATE */ in stmp_reset_block()
|
| D | irq_poll.c | 3 * Functions related to interrupt-poll handling in the block layer. This
24 * Add this irq_poll structure to the pending poll list and trigger the
102 * entries to the tail of this list, and only ->poll() in irq_poll_softirq()
110 work = iop->poll(iop, weight); in irq_poll_softirq()
184 iop->poll = poll_fn; in irq_poll_init()
192 * set the POLL softirq bit. The local_bh_disable()/enable() pair in irq_poll_cpu_dead()
194 * reach idle with the POLL softirq pending. in irq_poll_cpu_dead()
|
| /Linux-v6.6/drivers/cpuidle/governors/ |
| D | haltpoll.c | 39 /* allow shrinking guest halt poll */
63 /* Last state was poll? */ in haltpoll_select()
65 /* Halt if no event occurred on poll window */ in haltpoll_select()
70 /* Otherwise, poll again */ in haltpoll_select()
75 /* Last state was halt: poll */ in haltpoll_select()
111 * haltpoll_reflect - update variables and update poll time
|
| /Linux-v6.6/drivers/input/misc/ |
| D | wm831x-on.c | 38 * then need to poll to see when the pin is deasserted.
45 int poll, ret; in wm831x_poll_on() local
49 poll = !(ret & WM831X_ON_PIN_STS); in wm831x_poll_on()
51 input_report_key(wm831x_on->dev, KEY_POWER, poll); in wm831x_poll_on()
55 poll = 1; in wm831x_poll_on()
58 if (poll) in wm831x_poll_on()
|
| /Linux-v6.6/tools/leds/ |
| D | led_hw_brightness_mon.c | 17 #include <poll.h>
50 * but it is required to avoid spurious poll notifications in in main()
59 ret = poll(&pollfd, 1, -1); in main()
61 printf("Failed to poll %s file (%d)\n", in main()
|
| /Linux-v6.6/tools/testing/selftests/cgroup/ |
| D | wait_inotify.c | 13 #include <poll.h>
62 * poll waiting loop in main()
65 int ret = poll(&fds, 1, 10000); in main()
70 perror("poll"); in main()
|
| /Linux-v6.6/Documentation/devicetree/bindings/input/ |
| D | clps711x-keypad.txt | 6 - poll-interval: Poll interval time in milliseconds.
17 poll-interval = <120>;
|
| /Linux-v6.6/arch/mips/include/asm/ |
| D | i8259.h | 43 * @poll: pointer to platform-specific polling function
50 extern void i8259_set_poll(int (*poll)(void));
64 outb(0x0C, PIC_MASTER_CMD); /* prepare for poll */ in i8259_irq()
71 outb(0x0C, PIC_SLAVE_CMD); /* prepare for poll */ in i8259_irq()
|
| /Linux-v6.6/Documentation/admin-guide/gpio/ |
| D | sysfs.rst | 93 description of "edge"), you can poll(2) on that file and
94 poll(2) will return whenever the interrupt was triggered. If
95 you use poll(2), set the events POLLPRI and POLLERR. If you
97 poll(2) returns, either lseek(2) to the beginning of the sysfs
104 that will make poll(2) on the "value" file return.
113 poll(2) support configuration via the edge attribute
|
| /Linux-v6.6/Documentation/accounting/ |
| D | psi.rst | 70 Users can register triggers and use poll() to be woken up when resource
80 used to wait for trigger events using select(), poll() or epoll().
92 file descriptor is required to be able to poll it separately from others,
129 #include <poll.h>
158 n = poll(&fds, 1, -1);
160 printf("poll error: %s\n", strerror(errno));
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| /Linux-v6.6/drivers/input/ |
| D | input-poller.c | 16 void (*poll)(struct input_dev *dev); member
42 poller->poll(poller->input); in input_dev_poller_work()
58 poller->poll(poller->input); in input_dev_poller_start()
87 poller->poll = poll_fn; in input_setup_polling()
180 static DEVICE_ATTR(poll, 0644,
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