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V4L/DVB (13636): ir-core: add method to change IR protocol 

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2009-12-14 02:46:42 -03:00
parent 53f870228d
commit 09b01b90eb
1 changed files with 43 additions and 1 deletions
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44
drivers/media/IR/ir-sysfs.c
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@ -47,8 +47,50 @@ static ssize_t show_protocol(struct device *d,
return sprintf(buf, "%s\n", s);
}
static ssize_t store_protocol(struct device *d,
struct device_attribute *mattr,
const char *data,
size_t len)
{
struct ir_input_dev *ir_dev = dev_get_drvdata(d);
enum ir_type ir_type = IR_TYPE_UNKNOWN;
int rc = -EINVAL;
char *buf;
buf = strsep((char **) &data, "\n");
if (!strcasecmp(buf, "rc-5"))
ir_type = IR_TYPE_RC5;
else if (!strcasecmp(buf, "pd"))
ir_type = IR_TYPE_PD;
else if (!strcasecmp(buf, "nec"))
ir_type = IR_TYPE_NEC;
if (ir_type == IR_TYPE_UNKNOWN) {
IR_dprintk(1, "Error setting protocol to %ld\n", ir_type);
return -EINVAL;
}
if (ir_dev->props->change_protocol)
rc = ir_dev->props->change_protocol(ir_dev->props->priv,
ir_type);
if (rc < 0) {
IR_dprintk(1, "Error setting protocol to %ld\n", ir_type);
return -EINVAL;
}
ir_dev->rc_tab.ir_type = ir_type;
IR_dprintk(1, "Current protocol is %ld\n", ir_type);
return len;
}
static DEVICE_ATTR(current_protocol, S_IRUGO | S_IWUSR,
show_protocol, NULL);
show_protocol, store_protocol);
static struct attribute *ir_dev_attrs[] = {
&dev_attr_current_protocol.attr,