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* [PATCH v3 0/2] v4l: Add camera voice coil lens control class, current control
@ 2017-02-14 12:20 Sakari Ailus
  2017-02-14 12:20 ` [PATCH v3 1/2] " Sakari Ailus
  2017-02-14 12:20 ` [PATCH v3 2/2] ad5820: Use VOICE_COIL_CURRENT control Sakari Ailus
  0 siblings, 2 replies; 165+ messages in thread
From: Sakari Ailus @ 2017-02-14 12:20 UTC (permalink / raw)
  To: linux-media; +Cc: pavel

Hello everyone,

I wanted to refresh my voice coil lens patchset before we have more voice 
coil lens controller drivers. The VOCUS_ABSOLUTE control really is not a
best control ID to control a voice coil driver's current. 

There may be additional controls in the class: the hardware I'm familiar
with provides other controls (PWM vs. linear mode, resonance frequency and
ringing compensation formula to name a few) but I'm not fully certain 
they're something that even should be told to the user --- let alone
giving the user write access to them. 

My expectation is still that there will be more controls in the class. The
PWM / linear mode might be one candidate: PWM saves power but it may cause
other issues. These other issues might be something to ignore, depending
on the use case. That will be anyway left for the future. 

since v2:

- Don't remove the newline after control class definitions.

- Move all ad5820 related changes to the second patch. Some were
  accidentally left to the patch adding the new control class.

-- 
Kind regards,
Sakari

^ permalink raw reply	[flat|nested] 165+ messages in thread
* [PATCH, libv4l]: Make libv4l2 usable on devices with complex pipeline
@ 2018-07-08 21:32 ` Pavel Machek
  0 siblings, 0 replies; 165+ messages in thread
From: Pavel Machek @ 2018-07-08 21:32 UTC (permalink / raw)
  To: pali.rohar, sre, kernel list, linux-arm-kernel, linux-omap, tony,
	khilman, aaro.koskinen, ivo.g.dimitrov.75, patrikbachan, serge,
	abcloriens, clayton, martijn, sakari.ailus, Filip Matijević,
	mchehab, sakari.ailus, linux-media, hans.verkuil

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Add support for opening multiple devices in v4l2_open(), and for
mapping controls between devices.

This is necessary for complex devices, such as Nokia N900.

Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/lib/include/libv4l2.h b/lib/include/libv4l2.h
index ea1870d..a0ec0a9 100644
--- a/lib/include/libv4l2.h
+++ b/lib/include/libv4l2.h
@@ -58,6 +58,10 @@ LIBV4L_PUBLIC extern FILE *v4l2_log_file;
    invalid memory address will not lead to failure with errno being EFAULT,
    as it would with a real ioctl, but will cause libv4l2 to break, and you
    get to keep both pieces.
+
+   You can open complex pipelines by passing ".cv" file with pipeline
+   description to v4l2_open(). libv4l2 will open all the required
+   devices automatically in that case.
 */
 
 LIBV4L_PUBLIC int v4l2_open(const char *file, int oflag, ...);
diff --git a/lib/libv4l2/libv4l2-priv.h b/lib/libv4l2/libv4l2-priv.h
index 1924c91..1ee697a 100644
--- a/lib/libv4l2/libv4l2-priv.h
+++ b/lib/libv4l2/libv4l2-priv.h
@@ -104,6 +104,7 @@ struct v4l2_dev_info {
 	void *plugin_library;
 	void *dev_ops_priv;
 	const struct libv4l_dev_ops *dev_ops;
+	struct v4l2_controls_map *map;
 };
 
 /* From v4l2-plugin.c */
@@ -130,4 +131,20 @@ static inline void v4l2_plugin_cleanup(void *plugin_lib, void *plugin_priv,
 extern const char *v4l2_ioctls[];
 void v4l2_log_ioctl(unsigned long int request, void *arg, int result);
 
+
+struct v4l2_control_map {
+	unsigned long control;
+	int fd;
+};
+
+struct v4l2_controls_map {
+	int main_fd;
+	int num_fds;
+	int num_controls;
+	struct v4l2_control_map map[];
+};
+
+int v4l2_open_pipeline(struct v4l2_controls_map *map, int v4l2_flags);
+LIBV4L_PUBLIC int v4l2_get_fd_for_control(int fd, unsigned long control);
+
 #endif
diff --git a/lib/libv4l2/libv4l2.c b/lib/libv4l2/libv4l2.c
index 2db25d1..ac430f0 100644
--- a/lib/libv4l2/libv4l2.c
+++ b/lib/libv4l2/libv4l2.c
@@ -70,6 +70,8 @@
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
+#include <dirent.h>
+
 #include "libv4l2.h"
 #include "libv4l2-priv.h"
 #include "libv4l-plugin.h"
@@ -618,6 +620,8 @@ static void v4l2_update_fps(int index, struct v4l2_streamparm *parm)
 		devices[index].fps = 0;
 }
 
+static int v4l2_open_complex(int fd, int v4l2_flags);
+
 int v4l2_open(const char *file, int oflag, ...)
 {
 	int fd;
@@ -641,6 +645,21 @@ int v4l2_open(const char *file, int oflag, ...)
 	if (fd == -1)
 		return fd;
 
+	int len = strlen(file);
+	char *end = ".cv";
+	int len2 = strlen(end);
+	if ((len > len2) && (!strcmp(file + len - len2, end))) {
+		/* .cv extension */
+		struct stat sb;
+
+		if (fstat(fd, &sb) == 0) {
+			if ((sb.st_mode & S_IFMT) == S_IFREG) {
+				return v4l2_open_complex(fd, 0);
+			}
+		}
+		
+	}
+
 	if (v4l2_fd_open(fd, 0) == -1) {
 		int saved_err = errno;
 
@@ -787,6 +806,8 @@ no_capture:
 	if (index >= devices_used)
 		devices_used = index + 1;
 
+	devices[index].map = NULL;
+
 	/* Note we always tell v4lconvert to optimize src fmt selection for
 	   our default fps, the only exception is the app explicitly selecting
 	   a frame rate using the S_PARM ioctl after a S_FMT */
@@ -1056,12 +1077,47 @@ static int v4l2_s_fmt(int index, struct v4l2_format *dest_fmt)
 	return 0;
 }
 
+int v4l2_get_fd_for_control(int fd, unsigned long control)
+{
+	int index = v4l2_get_index(fd);
+	struct v4l2_controls_map *map;
+	int lo = 0;
+	int hi;
+
+	if (index < 0)
+		return fd;
+
+	map = devices[index].map;
+	if (!map)
+		return fd;
+	hi = map->num_controls;
+
+	while (lo < hi) {
+		int i = (lo + hi) / 2;
+		if (map->map[i].control == control) {
+			return map->map[i].fd;
+		}
+		if (map->map[i].control > control) {
+			hi = i;
+			continue;
+		}
+		if (map->map[i].control < control) {
+			lo = i+1;
+			continue;
+		}
+		printf("Bad: impossible condition in binary search\n");
+		exit(1);
+	}
+	return fd;
+}
+
 int v4l2_ioctl(int fd, unsigned long int request, ...)
 {
 	void *arg;
 	va_list ap;
 	int result, index, saved_err;
-	int is_capture_request = 0, stream_needs_locking = 0;
+	int is_capture_request = 0, stream_needs_locking = 0, 
+	    is_subdev_request = 0;
 
 	va_start(ap, request);
 	arg = va_arg(ap, void *);
@@ -1076,18 +1132,19 @@ int v4l2_ioctl(int fd, unsigned long int request, ...)
 	   ioctl, causing it to get sign extended, depending upon this behavior */
 	request = (unsigned int)request;
 
 	if (devices[index].convert == NULL)
 		goto no_capture_request;
 
 	/* Is this a capture request and do we need to take the stream lock? */
 	switch (request) {
-	case VIDIOC_QUERYCAP:
 	case VIDIOC_QUERYCTRL:
 	case VIDIOC_G_CTRL:
 	case VIDIOC_S_CTRL:
 	case VIDIOC_G_EXT_CTRLS:
-	case VIDIOC_TRY_EXT_CTRLS:
 	case VIDIOC_S_EXT_CTRLS:
+		is_subdev_request = 1;
+	case VIDIOC_QUERYCAP:
+	case VIDIOC_TRY_EXT_CTRLS:
 	case VIDIOC_ENUM_FRAMESIZES:
 	case VIDIOC_ENUM_FRAMEINTERVALS:
 		is_capture_request = 1;
@@ -1151,10 +1209,15 @@ int v4l2_ioctl(int fd, unsigned long int request, ...)
 	}
 
 	if (!is_capture_request) {
+		int sub_fd;
 no_capture_request:
+		sub_fd = fd;
+		if (is_subdev_request) {
+			sub_fd = v4l2_get_fd_for_control(index, ((struct v4l2_queryctrl *) arg)->id);
+		}
 		result = devices[index].dev_ops->ioctl(
 				devices[index].dev_ops_priv,
-				fd, request, arg);
+				sub_fd, request, arg);
 		saved_err = errno;
 		v4l2_log_ioctl(request, arg, result);
 		errno = saved_err;
@@ -1782,3 +1845,194 @@ int v4l2_get_control(int fd, int cid)
 			(qctrl.maximum - qctrl.minimum) / 2) /
 		(qctrl.maximum - qctrl.minimum);
 }
+
+int v4l2_open_pipeline(struct v4l2_controls_map *map, int v4l2_flags)
+{
+	int index;
+	int i;
+
+	for (i=0; i<map->num_controls; i++) {
+		if (map->map[i].fd <= 0) {
+			V4L2_LOG_ERR("v4l2_open_pipeline: Bad fd in map.\n");
+			return -1;
+		}
+		if (i>=1 && map->map[i].control <= map->map[i-1].control) {
+			V4L2_LOG_ERR("v4l2_open_pipeline: Controls not sorted.\n");
+			return -1;
+		}
+	}
+
+	i = v4l2_fd_open(map->main_fd, v4l2_flags);
+	index = v4l2_get_index(map->main_fd);
+	devices[index].map = map;
+	return i;
+}
+
+static void scan_devices(char **device_names, int *device_fds, int num)
+{
+	struct dirent **namelist;
+	int n;
+	char *class_v4l = "/sys/class/video4linux";
+
+	n = scandir(class_v4l, &namelist, NULL, alphasort);
+	if (n < 0) {
+		perror("scandir");
+		return;
+	}
+	
+	while (n--) {
+		if (namelist[n]->d_name[0] != '.') {
+			char filename[1024], content[1024];
+			sprintf(filename, "%s/%s/name", class_v4l, namelist[n]->d_name);
+			FILE *f = fopen(filename, "r");
+			if (!f) {
+				printf("Strange, can't open %s", filename);
+			} else {
+				fgets(content, 1024, f);
+				fclose(f);
+
+				int i;
+				for (i = num-1; i >=0; i--) {
+					if (!strcmp(content, device_names[i])) {
+						sprintf(filename, "/dev/%s", namelist[n]->d_name);
+						device_fds[i] = open(filename, O_RDWR);
+						if (device_fds[i] < 0) {
+							V4L2_LOG_ERR("Error opening %s: %m\n", filename);
+						}
+					}
+				}
+			}
+		}
+		free(namelist[n]);
+	}
+	free(namelist);
+  
+}
+
+static int v4l2_open_complex(int fd, int v4l2_flags)
+{
+#define perr(s) V4L2_LOG_ERR("open_complex: " s "\n")
+#define BUF 256
+	FILE *f = fdopen(fd, "r");
+
+	int res = -1;
+	char buf[BUF];
+	int version, num_modes, num_devices, num_controls;
+	int dev, control;
+
+	if (!f) {
+		perr("open of .cv file failed: %m");
+		goto err;
+	}
+
+	if (fscanf(f, "Complex Video: %d\n", &version) != 1) {
+		perr(".cv file does not have required header");
+		goto close;
+	}
+
+	if (version != 0) {
+		perr(".cv file has unknown version");
+		goto close;
+	}
+  
+	if (fscanf(f, "#modes: %d\n", &num_modes) != 1) {
+		perr("could not parse modes");
+		goto close;
+	}
+
+	if (num_modes != 1) {
+		perr("only single mode is supported for now");
+		goto close;
+	}
+
+	if (fscanf(f, "Mode: %s\n", buf) != 1) {
+		perr("could not parse mode name");
+		goto close;
+	}
+
+	if (fscanf(f, " #devices: %d\n", &num_devices) != 1) {
+		perr("could not parse number of devices");
+		goto close;
+	}
+#define MAX_DEVICES 16
+	char *device_names[MAX_DEVICES] = { NULL, };
+	int device_fds[MAX_DEVICES];
+	if (num_devices > MAX_DEVICES) {
+		perr("too many devices");
+		goto close;
+	}
+  
+	for (dev = 0; dev < num_devices; dev++) {
+		int tmp;
+		if (fscanf(f, "%d: ", &tmp) != 1) {
+			perr("could not parse device");
+			goto free_devices;
+		}
+		if (tmp != dev) {
+			perr("bad device number");
+			goto free_devices;
+		}
+		fgets(buf, BUF, f);
+		device_names[dev] = strdup(buf);
+		device_fds[dev] = -1;
+	}
+
+	scan_devices(device_names, device_fds, num_devices);
+
+	for (dev = 0; dev < num_devices; dev++) {
+		if (device_fds[dev] == -1) {
+			perr("Could not open all required devices");
+			goto close_devices;
+		}
+	}
+
+	if (fscanf(f, " #controls: %d\n", &num_controls) != 1) {
+		perr("can not parse number of controls");
+		goto close_devices;
+	}
+
+	struct v4l2_controls_map *map = malloc(sizeof(struct v4l2_controls_map) +
+					       num_controls*sizeof(struct v4l2_control_map));
+
+	map->num_controls = num_controls;
+	map->num_fds = num_devices;
+	map->main_fd = device_fds[0];
+  
+	for (control = 0; control < num_controls; control++) {
+		unsigned long num;
+		int dev;
+		if (fscanf(f, "0x%lx: %d\n", &num, &dev) != 2) {
+			perr("could not parse control");
+			goto free_map;
+		}
+		if ((dev < 0) || (dev >= num_devices)) {
+			perr("device out of range");
+			goto free_map;
+		}
+		map->map[control].control = num;
+		map->map[control].fd = device_fds[dev];
+	}
+	if (fscanf(f, "%s", buf) > 0) {
+		perr("junk at end of file");
+		goto free_map;
+	}
+
+	res = v4l2_open_pipeline(map, v4l2_flags);
+
+	if (res < 0) {
+free_map:
+		free(map);
+close_devices:
+		for (dev = 0; dev < num_devices; dev++)
+			close(device_fds[dev]);
+	}
+free_devices:
+	for (dev = 0; dev < num_devices; dev++) {
+		free(device_names[dev]);
+	}
+close:
+	fclose(f);
+err:
+	return res;
+}
+
diff --git a/lib/libv4lconvert/control/libv4lcontrol.c b/lib/libv4lconvert/control/libv4lcontrol.c
index 59f28b1..c1e6f93 100644
--- a/lib/libv4lconvert/control/libv4lcontrol.c
+++ b/lib/libv4lconvert/control/libv4lcontrol.c
@@ -863,6 +863,7 @@ int v4lcontrol_vidioc_queryctrl(struct v4lcontrol_data *data, void *arg)
 	struct v4l2_queryctrl *ctrl = arg;
 	int retval;
 	uint32_t orig_id = ctrl->id;
+	int fd;
 
 	/* if we have an exact match return it */
 	for (i = 0; i < V4LCONTROL_COUNT; i++)
@@ -872,8 +873,9 @@ int v4lcontrol_vidioc_queryctrl(struct v4lcontrol_data *data, void *arg)
 			return 0;
 		}
 
+	fd = v4l2_get_fd_for_control(data->fd, ctrl->id);
 	/* find out what the kernel driver would respond. */
-	retval = data->dev_ops->ioctl(data->dev_ops_priv, data->fd,
+	retval = data->dev_ops->ioctl(data->dev_ops_priv, fd,
 			VIDIOC_QUERYCTRL, arg);
 
 	if ((data->priv_flags & V4LCONTROL_SUPPORTS_NEXT_CTRL) &&
@@ -903,6 +905,7 @@ int v4lcontrol_vidioc_g_ctrl(struct v4lcontrol_data *data, void *arg)
 {
 	int i;
 	struct v4l2_control *ctrl = arg;
+	int fd;
 
 	for (i = 0; i < V4LCONTROL_COUNT; i++)
 		if ((data->controls & (1 << i)) &&
@@ -911,7 +914,8 @@ int v4lcontrol_vidioc_g_ctrl(struct v4lcontrol_data *data, void *arg)
 			return 0;
 		}
 
-	return data->dev_ops->ioctl(data->dev_ops_priv, data->fd,
+	fd = v4l2_get_fd_for_control(data->fd, ctrl->id);
+	return data->dev_ops->ioctl(data->dev_ops_priv, fd,
 			VIDIOC_G_CTRL, arg);
 }
 
@@ -994,6 +998,7 @@ int v4lcontrol_vidioc_s_ctrl(struct v4lcontrol_data *data, void *arg)
 {
 	int i;
 	struct v4l2_control *ctrl = arg;
+	int fd;
 
 	for (i = 0; i < V4LCONTROL_COUNT; i++)
 		if ((data->controls & (1 << i)) &&
@@ -1008,7 +1013,8 @@ int v4lcontrol_vidioc_s_ctrl(struct v4lcontrol_data *data, void *arg)
 			return 0;
 		}
 
-	return data->dev_ops->ioctl(data->dev_ops_priv, data->fd,
+	fd = v4l2_get_fd_for_control(data->fd, ctrl->id);
+	return data->dev_ops->ioctl(data->dev_ops_priv, fd,
 			VIDIOC_S_CTRL, arg);
 }
 

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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^ permalink raw reply related	[flat|nested] 165+ messages in thread
end of thread, other threads:[~2018-07-28 21:02 UTC | newest]

Thread overview: 165+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-02-14 12:20 [PATCH v3 0/2] v4l: Add camera voice coil lens control class, current control Sakari Ailus
2017-02-14 12:20 ` [PATCH v3 1/2] " Sakari Ailus
2017-02-14 22:47   ` Pavel Machek
2017-02-15  7:15     ` Sakari Ailus
2017-02-15  8:09       ` Pavel Machek
2017-02-20 22:26         ` Sakari Ailus
2017-02-20 22:48           ` Pavel Machek
2017-04-15  2:23   ` Mauro Carvalho Chehab
2017-04-15  7:12     ` Pavel Machek
2017-04-16  9:12     ` Sakari Ailus
2017-04-19 13:51       ` Mauro Carvalho Chehab
2017-04-24  9:30         ` support autofocus / autogain in libv4l2 Pavel Machek
2017-04-24 13:38           ` Mauro Carvalho Chehab
2017-04-24 13:38             ` Mauro Carvalho Chehab
2017-04-24 21:29             ` Pavel Machek
2017-04-24 21:29               ` Pavel Machek
2017-04-25  1:47               ` Mauro Carvalho Chehab
2017-04-25  1:47                 ` Mauro Carvalho Chehab
2017-04-25  8:05                 ` Pavel Machek
2017-04-25  8:05                   ` Pavel Machek
2017-04-25  8:08                   ` Pali Rohár
2017-04-25  8:08                     ` Pali Rohár
2017-04-25  8:08                     ` Pali Rohár
2017-04-25 11:23                     ` Pavel Machek
2017-04-25 11:23                       ` Pavel Machek
2017-04-25 11:30                       ` Pali Rohár
2017-04-25 11:30                         ` Pali Rohár
2017-04-25 12:28                         ` Pavel Machek
2017-04-25 12:28                           ` Pavel Machek
2017-04-25 12:51                           ` Pali Rohár
2017-04-25 12:51                             ` Pali Rohár
2017-04-25 16:55                         ` Nicolas Dufresne
2017-04-25 16:55                           ` Nicolas Dufresne
2017-04-25 16:51                     ` Nicolas Dufresne
2017-04-25 16:51                       ` Nicolas Dufresne
2017-04-25 16:53                   ` Nicolas Dufresne
2017-04-25 16:53                     ` Nicolas Dufresne
2017-04-25 16:53                     ` Nicolas Dufresne
2017-04-26 10:53                     ` Pavel Machek
2017-04-26 10:53                       ` Pavel Machek
2017-04-26 10:53                 ` [patch] propagating controls in libv4l2 was " Pavel Machek
2017-04-26 10:53                   ` Pavel Machek
2017-04-26 11:13                   ` Mauro Carvalho Chehab
2017-04-26 11:13                     ` Mauro Carvalho Chehab
2017-04-26 13:23                     ` [patch] autogain support for bayer10 format (was Re: [patch] propagating controls in libv4l2) Pavel Machek
2017-04-26 13:23                       ` Pavel Machek
2017-04-26 15:43                       ` Ivaylo Dimitrov
2017-04-26 15:43                         ` Ivaylo Dimitrov
2017-04-26 22:51                         ` Pavel Machek
2017-04-26 22:51                           ` Pavel Machek
2017-04-26 22:51                           ` Pavel Machek
2017-04-27  5:52                           ` Ivaylo Dimitrov
2017-04-27  5:52                             ` Ivaylo Dimitrov
2017-07-13  7:57                             ` Pavel Machek
2017-07-13  7:57                               ` Pavel Machek
2017-05-03 19:05                         ` Russell King - ARM Linux
2017-05-03 19:05                           ` Russell King - ARM Linux
2017-05-03 19:58                           ` Pavel Machek
2017-05-03 19:58                             ` Pavel Machek
2017-05-08 22:28                         ` [patch, libv4l]: fix integer overflow Pavel Machek
2017-05-09  6:29                           ` Hans Verkuil
2017-05-09  6:32                             ` Hans Verkuil
2017-05-09  8:02                               ` Pavel Machek
2017-05-09 10:59                             ` [patch, libv4l]: fix typos Pavel Machek
2017-05-09 11:01                             ` [patch, libv4l]: Add support for GRBG10 format conversion Pavel Machek
2017-05-09 11:04                             ` [patch, libv4l]: Introduce define for lookup table size Pavel Machek
2017-05-16 11:17                               ` Hans Verkuil
2017-05-16 12:45                                 ` Pavel Machek
2017-05-16 12:56                                   ` Hans Verkuil
2017-05-16 23:23                                     ` Pavel Machek
2017-05-19  9:13                                     ` [libv4l]: How to do 10-bit support? Stand-alone conversions? Pavel Machek
2018-03-16 20:55                                     ` [RFC, libv4l]: Make libv4l2 usable on devices with complex pipeline Pavel Machek
2018-03-19  9:47                                       ` Hans Verkuil
2018-03-19 10:23                                         ` Pavel Machek
2018-03-19 10:47                                           ` Mauro Carvalho Chehab
2018-03-19 11:11                                             ` Hans Verkuil
2018-03-19 12:00                                               ` Pavel Machek
2018-03-19 12:15                                                 ` Hans Verkuil
2018-03-19 12:48                                                   ` Pavel Machek
2018-03-19 13:29                                                     ` Hans Verkuil
2018-03-19 22:18                                                       ` Pavel Machek
2018-03-19 13:45                                                     ` Mauro Carvalho Chehab
2018-03-19 13:26                                                   ` Mauro Carvalho Chehab
2018-03-20  7:50                                                     ` Pavel Machek
2018-05-15 20:01                                                     ` Pavel Machek
2018-05-15 22:03                                                       ` Mauro Carvalho Chehab
2018-05-16 20:53                                                         ` Pavel Machek
2018-06-02 21:01                                                         ` Pavel Machek
2018-06-06  6:18                                                           ` Tomasz Figa
2018-06-06  8:46                                                             ` Pavel Machek
2018-06-06  8:53                                                               ` Tomasz Figa
2018-06-06 10:01                                                                 ` Pavel Machek
2018-06-06 16:57                                                                   ` Mauro Carvalho Chehab
2018-06-06 21:27                                                                     ` Pavel Machek
2018-06-07 12:22                                                                     ` [PATCH, " Pavel Machek
2018-06-06 10:51                                                                 ` [RFC, " Pavel Machek
2018-06-06 11:16                                                                   ` Tomasz Figa
2018-06-06 20:37                                                                     ` Pavel Machek
2018-06-06 17:13                                                                   ` Mauro Carvalho Chehab
2018-06-06 10:23                                                             ` Pavel Machek
2018-06-07  7:25                                                             ` Pavel Machek
2017-05-09 11:10                             ` [patch, libv4l]: fix integer overflow Pavel Machek
2017-05-16 10:42                             ` Pavel Machek
2017-05-21 10:33                             ` [patch, libv4l]: add sdlcam example for testing digital still camera functionality Pavel Machek
2017-05-26 20:41                               ` Pavel Machek
2017-05-27  9:27                                 ` Hans Verkuil
2017-05-29  6:13                               ` Hans Verkuil
2017-05-29  7:32                                 ` Pavel Machek
2017-05-29  8:02                                   ` Hans Verkuil
2017-06-14 11:16                                     ` Sakari Ailus
2017-06-14 20:41                                       ` Pavel Machek
2017-07-13  8:36                                       ` Pavel Machek
2017-05-09  8:07                           ` [patch, libv4l]: fix integer overflow Pavel Machek
2017-04-30 22:48                       ` [patch] autogain support for bayer10 format (was Re: [patch] propagating controls in libv4l2) Pavel Machek
2017-04-30 22:48                         ` Pavel Machek
2017-07-13  9:49                     ` [patch] propagating controls in libv4l2 was Re: support autofocus / autogain in libv4l2 Pavel Machek
2017-07-13  9:49                       ` Pavel Machek
2017-04-26 11:26                   ` Mauro Carvalho Chehab
2017-04-26 11:26                     ` Mauro Carvalho Chehab
2017-04-29  9:19                     ` Pavel Machek
2017-04-29  9:19                       ` Pavel Machek
2017-10-21 22:00                     ` Camera support, Prague next week, sdlcam Pavel Machek
2017-10-22  7:36                       ` Hans Verkuil
2017-10-22  7:36                         ` Hans Verkuil
2017-10-22  8:31                         ` Pavel Machek
2017-10-22  8:31                           ` Pavel Machek
2017-10-23 18:54                         ` Pavel Machek
2017-10-23 18:54                           ` Pavel Machek
2017-10-23 19:24                           ` Hans Verkuil
2017-10-23 19:24                             ` Hans Verkuil
2017-10-23 20:15                             ` Sakari Ailus
2017-10-23 20:15                               ` Sakari Ailus
2017-10-23 21:02                               ` Mauro Carvalho Chehab
2017-10-23 21:02                                 ` Mauro Carvalho Chehab
2017-10-31 21:28                               ` Nokia N9: fun with camera Pavel Machek
2017-11-01  6:36                                 ` Pavel Machek
2017-11-01  6:36                                   ` Pavel Machek
2017-11-01 15:32                                   ` Pavel Machek
2017-11-01 15:32                                     ` Pavel Machek
2017-04-24 22:07             ` support autofocus / autogain in libv4l2 Pavel Machek
2017-04-24 22:07               ` Pavel Machek
2017-04-25  1:57               ` Mauro Carvalho Chehab
2017-04-25  1:57                 ` Mauro Carvalho Chehab
2017-04-25  8:20                 ` Pavel Machek
2017-04-25  8:20                   ` Pavel Machek
2017-04-25 11:23                 ` Pavel Machek
2017-04-25 11:23                   ` Pavel Machek
2017-04-28 22:00         ` [PATCH v3 1/2] v4l: Add camera voice coil lens control class, current control Pavel Machek
2017-04-29  1:46           ` Mauro Carvalho Chehab
2017-05-12 10:49         ` Sakari Ailus
2017-05-13 11:08           ` Pavel Machek
2017-02-14 12:20 ` [PATCH v3 2/2] ad5820: Use VOICE_COIL_CURRENT control Sakari Ailus
2018-07-08 21:32 [PATCH, libv4l]: Make libv4l2 usable on devices with complex pipeline Pavel Machek
2018-07-08 21:32 ` Pavel Machek
2018-07-19 20:53 ` Pavel Machek
2018-07-19 20:53   ` Pavel Machek
2018-07-23 18:36   ` Mauro Carvalho Chehab
2018-07-23 18:36     ` Mauro Carvalho Chehab
2018-07-28 19:36     ` Pavel Machek
2018-07-28 19:36       ` Pavel Machek
2018-07-27 12:47 ` Mauro Carvalho Chehab
2018-07-27 12:47   ` Mauro Carvalho Chehab
2018-07-27 12:47   ` Mauro Carvalho Chehab
2018-07-28 21:02   ` Pavel Machek
2018-07-28 21:02     ` Pavel Machek

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