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Searched refs:poll (Results 1 – 25 of 1116) sorted by relevance

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/linux/io_uring/
H A Dpoll.c118 return &req->apoll->poll; in io_poll_get_single()
131 static void io_init_poll_iocb(struct io_poll *poll, __poll_t events) in io_init_poll_iocb() argument
133 poll->head = NULL; in io_init_poll_iocb()
136 poll->events = events | IO_POLL_UNMASK; in io_init_poll_iocb()
137 INIT_LIST_HEAD(&poll->wait.entry); in io_init_poll_iocb()
138 init_waitqueue_func_entry(&poll->wait, io_poll_wake); in io_init_poll_iocb()
141 static inline void io_poll_remove_entry(struct io_poll *poll) in io_poll_remove_entry() argument
143 struct wait_queue_head *head = smp_load_acquire(&poll->head); in io_poll_remove_entry()
147 list_del_init(&poll->wait.entry); in io_poll_remove_entry()
148 poll->head = NULL; in io_poll_remove_entry()
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/linux/drivers/tty/vt/
H A Dvc_screen.c90 struct vcs_poll_data *poll = in vcs_notifier() local
92 int currcons = poll->cons_num; in vcs_notifier()
113 poll->event = code; in vcs_notifier()
114 wake_up_interruptible(&poll->waitq); in vcs_notifier()
115 kill_fasync(&poll->fasync, SIGIO, fa_band); in vcs_notifier()
120 vcs_poll_data_free(struct vcs_poll_data *poll) in vcs_poll_data_free() argument
122 unregister_vt_notifier(&poll->notifier); in vcs_poll_data_free()
123 kfree(poll); in vcs_poll_data_free()
129 struct vcs_poll_data *poll = file->private_data, *kill = NULL; in vcs_poll_data_get() local
131 if (poll) in vcs_poll_data_get()
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/linux/Documentation/userspace-api/media/v4l/
H A Dfunc-poll.rst4 .. _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/include/trace/events/
H A Dscmi.h39 bool poll, int inflight),
40 TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll, inflight),
47 __field(bool, poll)
56 __entry->poll = poll;
62 __entry->transfer_id, __entry->poll, __entry->inflight)
67 u32 timeout, bool poll),
68 TP_ARGS(transfer_id, msg_id, protocol_id, seq, timeout, poll),
76 __field(bool, poll)
85 __entry->poll = poll;
90 __entry->transfer_id, __entry->timeout, __entry->poll)
/linux/Documentation/userspace-api/media/mediactl/
H A Drequest-func-poll.rst4 .. _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/Documentation/userspace-api/media/cec/
H A Dcec-func-poll.rst4 .. _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/drivers/iio/common/hid-sensors/
H A Dhid-sensor-attributes.c164 st->poll.report_id, in hid_sensor_read_poll_value()
165 st->poll.index, sizeof(value), &value); in hid_sensor_read_poll_value()
170 if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_read_poll_value()
185 st->poll.report_id, in hid_sensor_read_samp_freq_value()
186 st->poll.index, sizeof(value), &value); in hid_sensor_read_samp_freq_value()
191 if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND) in hid_sensor_read_samp_freq_value()
193 else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_read_samp_freq_value()
216 if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND) in hid_sensor_write_samp_freq_value()
218 else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_write_samp_freq_value()
223 ret = sensor_hub_set_feature(st->hsdev, st->poll.report_id, in hid_sensor_write_samp_freq_value()
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/linux/arch/arm/boot/dts/microchip/
H A Dat91-natte.dtsi74 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/sound/core/
H A Dmisc.c92 int poll; member
110 kill_fasync(&fasync->fasync, fasync->signal, fasync->poll); in snd_fasync_work_fn()
145 void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll) in snd_kill_fasync() argument
151 fasync->poll = poll; in snd_kill_fasync()
/linux/drivers/input/misc/
H A Dwm831x-on.c45 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/Documentation/translations/zh_CN/accounting/
H A Dpsi.rst63 用户可注册触发器，通过poll()监控资源压力是否超过门限。
69 所打开的文件描述符用于等待事件，可使用select()、poll()、epoll()。
102 #include <poll.h>
128 n = poll(&fds, 1, -1);
130 printf("poll error: %s\n", strerror(errno));
/linux/kernel/
H A Dutsname_sysctl.c65 proc_sys_poll_notify(table->poll); in proc_do_uts_string()
113 .poll = &hostname_poll,
121 .poll = &domainname_poll,
134 proc_sys_poll_notify(table->poll); in uts_proc_notify()
/linux/tools/testing/selftests/powerpc/nx-gzip/
H A Dgzip_vas.c137 long poll = 0; in nx_wait_for_csb() local
153 ++poll; in nx_wait_for_csb()
167 if (poll > CSB_MAX_POLL) in nx_wait_for_csb()
186 (int) poll); in nx_wait_for_csb()
188 (int) poll); in nx_wait_for_csb()
/linux/drivers/input/
H A Dinput-poller.c17 void (*poll)(struct input_dev *dev); member
43 poller->poll(poller->input); in input_dev_poller_work()
59 poller->poll(poller->input); in input_dev_poller_start()
88 poller->poll = poll_fn; in input_setup_polling()
179 static DEVICE_ATTR(poll, 0644,
/linux/drivers/dma-buf/
H A Ddma-buf.c281 struct dma_buf *dmabuf = container_of(dcb->poll, struct dma_buf, poll); in dma_buf_poll_cb()
284 spin_lock_irqsave(&dcb->poll->lock, flags); in dma_buf_poll_cb()
285 wake_up_locked_poll(dcb->poll, dcb->active); in dma_buf_poll_cb()
287 spin_unlock_irqrestore(&dcb->poll->lock, flags); in dma_buf_poll_cb()
312 static __poll_t dma_buf_poll(struct file *file, poll_table *poll) in dma_buf_poll() argument
324 poll_wait(file, &dmabuf->poll, poll); in dma_buf_poll()
326 events = poll_requested_events(poll) & (EPOLLIN | EPOLLOUT); in dma_buf_poll()
336 spin_lock_irq(&dmabuf->poll.lock); in dma_buf_poll()
341 spin_unlock_irq(&dmabuf->poll.lock); in dma_buf_poll()
359 spin_lock_irq(&dmabuf->poll.lock); in dma_buf_poll()
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/linux/Documentation/networking/
H A Dnapi.rst16 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/drivers/media/mc/
H A Dmc-devnode.c90 struct poll_table_struct *poll) in media_poll() argument
96 if (!devnode->fops->poll) in media_poll()
98 return devnode->fops->poll(filp, poll); in media_poll()
201 .poll = media_poll,
/linux/drivers/gpu/drm/amd/display/dc/
H A Ddc_fused_io.c96 const struct mod_hdcp_atomic_op_i2c *poll, in dm_atomic_write_poll_read_i2c() argument
110 && op_i2c_convert(&commands[1], poll, FUSED_REQUEST_POLL, ddc_line, over_aux) in dm_atomic_write_poll_read_i2c()
125 const struct mod_hdcp_atomic_op_aux *poll, in dm_atomic_write_poll_read_aux() argument
137 && op_aux_convert(&commands[1], poll, FUSED_REQUEST_POLL, ddc_line) in dm_atomic_write_poll_read_aux()
H A Ddc_fused_io.h15 const struct mod_hdcp_atomic_op_i2c *poll,
24 const struct mod_hdcp_atomic_op_aux *poll,
/linux/drivers/isdn/mISDN/
H A Ddsp_core.c167 static int poll; variable
173 module_param(poll, uint, S_IRUGO | S_IWUSR);
1127 dsp_poll = poll; in dsp_init()
1131 "maximum.\n", __func__, poll, MAX_POLL); in dsp_init()
1141 dsp_tics = poll * HZ / 8000; in dsp_init()
1142 if (dsp_tics * 8000 != poll * HZ) { in dsp_init()
1145 "%d HZ.\n", poll, HZ); in dsp_init()
1150 poll = 8; in dsp_init()
1151 while (poll <= MAX_POLL) { in dsp_init()
1152 tics = (poll * HZ) / 8000; in dsp_init()
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/linux/include/linux/
H A Dsysctl.h120 static inline void *proc_sys_poll_event(struct ctl_table_poll *poll) in proc_sys_poll_event() argument
122 return (void *)(unsigned long)atomic_read(&poll->event); in proc_sys_poll_event()
139 struct ctl_table_poll *poll; member
215 void proc_sys_poll_notify(struct ctl_table_poll *poll);
/linux/drivers/firmware/arm_scmi/
H A Dperf.c692 u32 domain, u32 level, bool poll) in scmi_perf_msg_level_set() argument
702 t->hdr.poll_completion = poll; in scmi_perf_msg_level_set()
715 bool poll) in __scmi_perf_level_set() argument
727 return scmi_perf_msg_level_set(ph, dom->id, level, poll); in __scmi_perf_level_set()
731 u32 domain, u32 level, bool poll) in scmi_perf_level_set() argument
752 return __scmi_perf_level_set(ph, dom, level, poll); in scmi_perf_level_set()
756 u32 domain, u32 *level, bool poll) in scmi_perf_msg_level_get() argument
766 t->hdr.poll_completion = poll; in scmi_perf_msg_level_get()
779 bool poll) in __scmi_perf_level_get() argument
788 return scmi_perf_msg_level_get(ph, dom->id, level, poll); in __scmi_perf_level_get()
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/linux/drivers/vhost/
H A Dvhost.c165 struct vhost_poll *poll; in vhost_poll_func() local
167 poll = container_of(pt, struct vhost_poll, table); in vhost_poll_func()
168 poll->wqh = wqh; in vhost_poll_func()
169 add_wait_queue(wqh, &poll->wait); in vhost_poll_func()
175 struct vhost_poll *poll = container_of(wait, struct vhost_poll, wait); in vhost_poll_wakeup() local
176 struct vhost_work *work = &poll->work; in vhost_poll_wakeup()
178 if (!(key_to_poll(key) & poll->mask)) in vhost_poll_wakeup()
181 if (!poll->dev->use_worker) in vhost_poll_wakeup()
184 vhost_poll_queue(poll); in vhost_poll_wakeup()
197 void vhost_poll_init(struct vhost_poll *poll, vhost_work_fn_t fn, in vhost_poll_init() argument
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/linux/drivers/pci/hotplug/
H A Dcpcihp_zt5550.c42 static bool poll; variable
201 if (!poll) { in zt5550_hc_init_one()
308 module_param(poll, bool, 0644);
309 MODULE_PARM_DESC(poll, "#ENUM polling mode enabled or not");
/linux/arch/um/drivers/
H A Dubd_user.c71 return poll(&kernel_pollfd, 1, timeout); in ubd_read_poll()
76 return poll(&kernel_pollfd, 1, timeout); in ubd_write_poll()

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