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path: root/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
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Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-sysfs.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-sysfs.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
index 46a8c39ba03..733680f2131 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
@@ -65,6 +65,7 @@ struct pvr2_sysfs_ctl_item {
struct device_attribute attr_type;
struct device_attribute attr_min;
struct device_attribute attr_max;
+ struct device_attribute attr_def;
struct device_attribute attr_enum;
struct device_attribute attr_bits;
struct device_attribute attr_val;
@@ -145,6 +146,23 @@ static ssize_t show_max(struct device *class_dev,
return scnprintf(buf, PAGE_SIZE, "%ld\n", val);
}
+static ssize_t show_def(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int val;
+ int ret;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_def);
+ ret = pvr2_ctrl_get_def(cip->cptr, &val);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_def(cid=%d) is %d, stat=%d",
+ cip->chptr, cip->ctl_id, val, ret);
+ if (ret < 0) {
+ return ret;
+ }
+ return scnprintf(buf, PAGE_SIZE, "%d\n", val);
+}
+
static ssize_t show_val_norm(struct device *class_dev,
struct device_attribute *attr,
char *buf)
@@ -320,6 +338,10 @@ static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id)
cip->attr_max.attr.mode = S_IRUGO;
cip->attr_max.show = show_max;
+ cip->attr_def.attr.name = "def_val";
+ cip->attr_def.attr.mode = S_IRUGO;
+ cip->attr_def.show = show_def;
+
cip->attr_val.attr.name = "cur_val";
cip->attr_val.attr.mode = S_IRUGO;
@@ -343,6 +365,7 @@ static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id)
cip->attr_gen[acnt++] = &cip->attr_name.attr;
cip->attr_gen[acnt++] = &cip->attr_type.attr;
cip->attr_gen[acnt++] = &cip->attr_val.attr;
+ cip->attr_gen[acnt++] = &cip->attr_def.attr;
cip->attr_val.show = show_val_norm;
cip->attr_val.store = store_val_norm;
if (pvr2_ctrl_has_custom_symbols(cptr)) {