This ioctl will be extended to return more information than just the name.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
</para>
</listitem>
<listitem>
- <para>Added new debugging ioctl &VIDIOC-DBG-G-CHIP-NAME;.
+ <para>Added new debugging ioctl &VIDIOC-DBG-G-CHIP-INFO;.
</para>
</listitem>
</orderedlist>
<revremark>Remove obsolete and unused DV_PRESET ioctls:
VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET, VIDIOC_QUERY_DV_PRESET and
VIDIOC_ENUM_DV_PRESET. Remove the related v4l2_input/output capability
- flags V4L2_IN_CAP_PRESETS and V4L2_OUT_CAP_PRESETS. Added VIDIOC_DBG_G_CHIP_NAME.
+ flags V4L2_IN_CAP_PRESETS and V4L2_OUT_CAP_PRESETS. Added VIDIOC_DBG_G_CHIP_INFO.
</revremark>
</revision>
&sub-create-bufs;
&sub-cropcap;
&sub-dbg-g-chip-ident;
- &sub-dbg-g-chip-name;
+ &sub-dbg-g-chip-info;
&sub-dbg-g-register;
&sub-decoder-cmd;
&sub-dqevent;
-<refentry id="vidioc-dbg-g-chip-name">
+<refentry id="vidioc-dbg-g-chip-info">
<refmeta>
- <refentrytitle>ioctl VIDIOC_DBG_G_CHIP_NAME</refentrytitle>
+ <refentrytitle>ioctl VIDIOC_DBG_G_CHIP_INFO</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
- <refname>VIDIOC_DBG_G_CHIP_NAME</refname>
+ <refname>VIDIOC_DBG_G_CHIP_INFO</refname>
<refpurpose>Identify the chips on a TV card</refpurpose>
</refnamediv>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
- <paramdef>struct v4l2_dbg_chip_name
+ <paramdef>struct v4l2_dbg_chip_info
*<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
- <para>VIDIOC_DBG_G_CHIP_NAME</para>
+ <para>VIDIOC_DBG_G_CHIP_INFO</para>
</listitem>
</varlistentry>
<varlistentry>
<para>To query the driver applications must initialize the
<structfield>match.type</structfield> and
<structfield>match.addr</structfield> or <structfield>match.name</structfield>
-fields of a &v4l2-dbg-chip-name;
-and call <constant>VIDIOC_DBG_G_CHIP_NAME</constant> with a pointer to
+fields of a &v4l2-dbg-chip-info;
+and call <constant>VIDIOC_DBG_G_CHIP_INFO</constant> with a pointer to
this structure. On success the driver stores information about the
selected chip in the <structfield>name</structfield> and
<structfield>flags</structfield> fields. On failure the structure
<structfield>match.addr</structfield> selects the nth bridge 'chip'
on the TV card. You can enumerate all chips by starting at zero and
incrementing <structfield>match.addr</structfield> by one until
-<constant>VIDIOC_DBG_G_CHIP_NAME</constant> fails with an &EINVAL;.
+<constant>VIDIOC_DBG_G_CHIP_INFO</constant> fails with an &EINVAL;.
The number zero always selects the bridge chip itself, ⪚ the chip
connected to the PCI or USB bus. Non-zero numbers identify specific
parts of the bridge chip such as an AC97 register block.</para>
</tgroup>
</table>
- <table pgwide="1" frame="none" id="v4l2-dbg-chip-name">
- <title>struct <structname>v4l2_dbg_chip_name</structname></title>
+ <table pgwide="1" frame="none" id="v4l2-dbg-chip-info">
+ <title>struct <structname>v4l2_dbg_chip_info</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<structfield>match.addr</structfield> selects the nth non-sub-device chip
on the TV card. The number zero always selects the host chip, ⪚ the
chip connected to the PCI or USB bus. You can find out which chips are
-present with the &VIDIOC-DBG-G-CHIP-NAME; ioctl.</para>
+present with the &VIDIOC-DBG-G-CHIP-INFO; ioctl.</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_I2C_DRIVER</constant>,
supported by the saa7127 driver, regardless of its &i2c; bus address.
When multiple chips supported by the same driver are present, the
effect of these ioctls is undefined. Again with the
-&VIDIOC-DBG-G-CHIP-NAME; ioctl you can find out which &i2c; chips are
+&VIDIOC-DBG-G-CHIP-INFO; ioctl you can find out which &i2c; chips are
present.</para>
<para>When <structfield>match.type</structfield> is
<para>Due to a flaw in the Linux &i2c; bus driver these ioctls may
return successfully without actually reading or writing a register. To
-catch the most likely failure we recommend a &VIDIOC-DBG-G-CHIP-NAME;
+catch the most likely failure we recommend a &VIDIOC-DBG-G-CHIP-INFO;
call confirming the presence of the selected &i2c; chip.</para>
</note>
<para>These ioctls are optional, not all drivers may support them.
However when a driver supports these ioctls it must also support
-&VIDIOC-DBG-G-CHIP-NAME;. Conversely it may support
-<constant>VIDIOC_DBG_G_CHIP_NAME</constant> but not these ioctls.</para>
+&VIDIOC-DBG-G-CHIP-INFO;. Conversely it may support
+<constant>VIDIOC_DBG_G_CHIP_INFO</constant> but not these ioctls.</para>
<para><constant>VIDIOC_DBG_G_REGISTER</constant> and
<constant>VIDIOC_DBG_S_REGISTER</constant> were introduced in Linux
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int vidioc_g_chip_name(struct file *file, void *priv,
- struct v4l2_dbg_chip_name *chip)
+static int vidioc_g_chip_info(struct file *file, void *priv,
+ struct v4l2_dbg_chip_info *chip)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
.vidioc_g_chip_ident = vidioc_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
- .vidioc_g_chip_name = vidioc_g_chip_name,
+ .vidioc_g_chip_info = vidioc_g_chip_info,
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
.vidioc_g_chip_ident = vidioc_g_chip_ident,
- .vidioc_g_chip_name = vidioc_g_chip_name,
+ .vidioc_g_chip_info = vidioc_g_chip_info,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
SET_VALID_IOCTL(ops, VIDIOC_LOG_STATUS, vidioc_log_status);
#ifdef CONFIG_VIDEO_ADV_DEBUG
- set_bit(_IOC_NR(VIDIOC_DBG_G_CHIP_NAME), valid_ioctls);
+ set_bit(_IOC_NR(VIDIOC_DBG_G_CHIP_INFO), valid_ioctls);
set_bit(_IOC_NR(VIDIOC_DBG_G_REGISTER), valid_ioctls);
set_bit(_IOC_NR(VIDIOC_DBG_S_REGISTER), valid_ioctls);
#endif
p->ident, p->revision);
}
-static void v4l_print_dbg_chip_name(const void *arg, bool write_only)
+static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
{
- const struct v4l2_dbg_chip_name *p = arg;
+ const struct v4l2_dbg_chip_info *p = arg;
pr_cont("type=%u, ", p->match.type);
if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
return ops->vidioc_g_chip_ident(file, fh, p);
}
-static int v4l_dbg_g_chip_name(const struct v4l2_ioctl_ops *ops,
+static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
#ifdef CONFIG_VIDEO_ADV_DEBUG
struct video_device *vfd = video_devdata(file);
- struct v4l2_dbg_chip_name *p = arg;
+ struct v4l2_dbg_chip_info *p = arg;
struct v4l2_subdev *sd;
int idx = 0;
strlcpy(p->name, vfd->parent->driver->name, sizeof(p->name));
else
strlcpy(p->name, "bridge", sizeof(p->name));
- if (ops->vidioc_g_chip_name)
- return ops->vidioc_g_chip_name(file, fh, arg);
+ if (ops->vidioc_g_chip_info)
+ return ops->vidioc_g_chip_info(file, fh, arg);
if (p->match.addr)
return -EINVAL;
return 0;
IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0),
IOCTL_INFO_STD(VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, type)),
IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
- IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_NAME, v4l_dbg_g_chip_name, v4l_print_dbg_chip_name, INFO_FL_CLEAR(v4l2_dbg_chip_name, match)),
+ IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
int (*vidioc_s_register) (struct file *file, void *fh,
const struct v4l2_dbg_register *reg);
- int (*vidioc_g_chip_name) (struct file *file, void *fh,
- struct v4l2_dbg_chip_name *chip);
+ int (*vidioc_g_chip_info) (struct file *file, void *fh,
+ struct v4l2_dbg_chip_info *chip);
#endif
int (*vidioc_g_chip_ident) (struct file *file, void *fh,
struct v4l2_dbg_chip_ident *chip);
#define V4L2_CHIP_FL_READABLE (1 << 0)
#define V4L2_CHIP_FL_WRITABLE (1 << 1)
-/* VIDIOC_DBG_G_CHIP_NAME */
-struct v4l2_dbg_chip_name {
+/* VIDIOC_DBG_G_CHIP_INFO */
+struct v4l2_dbg_chip_info {
struct v4l2_dbg_match match;
char name[32];
__u32 flags;
/* Experimental, meant for debugging, testing and internal use.
Never use this ioctl in applications!
- Note: this ioctl is deprecated in favor of VIDIOC_DBG_G_CHIP_NAME and
+ Note: this ioctl is deprecated in favor of VIDIOC_DBG_G_CHIP_INFO and
will go away in the future. */
#define VIDIOC_DBG_G_CHIP_IDENT _IOWR('V', 81, struct v4l2_dbg_chip_ident)
/* Experimental, meant for debugging, testing and internal use.
Never use these in applications! */
-#define VIDIOC_DBG_G_CHIP_NAME _IOWR('V', 102, struct v4l2_dbg_chip_name)
+#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
/* Reminder: when adding new ioctls please add support for them to
drivers/media/video/v4l2-compat-ioctl32.c as well! */
projects / sojka / nv-tegra / linux-3.10.git / commitdiff