V4L/DVB (13636): ir-core: add method to change IR protocol
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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53f870228d
commit
09b01b90eb
1 changed files with 43 additions and 1 deletions
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@ -47,8 +47,50 @@ static ssize_t show_protocol(struct device *d,
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return sprintf(buf, "%s\n", s);
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}
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static ssize_t store_protocol(struct device *d,
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struct device_attribute *mattr,
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const char *data,
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size_t len)
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{
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struct ir_input_dev *ir_dev = dev_get_drvdata(d);
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enum ir_type ir_type = IR_TYPE_UNKNOWN;
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int rc = -EINVAL;
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char *buf;
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buf = strsep((char **) &data, "\n");
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if (!strcasecmp(buf, "rc-5"))
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ir_type = IR_TYPE_RC5;
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else if (!strcasecmp(buf, "pd"))
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ir_type = IR_TYPE_PD;
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else if (!strcasecmp(buf, "nec"))
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ir_type = IR_TYPE_NEC;
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if (ir_type == IR_TYPE_UNKNOWN) {
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IR_dprintk(1, "Error setting protocol to %ld\n", ir_type);
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return -EINVAL;
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}
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if (ir_dev->props->change_protocol)
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rc = ir_dev->props->change_protocol(ir_dev->props->priv,
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ir_type);
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if (rc < 0) {
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IR_dprintk(1, "Error setting protocol to %ld\n", ir_type);
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return -EINVAL;
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}
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ir_dev->rc_tab.ir_type = ir_type;
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IR_dprintk(1, "Current protocol is %ld\n", ir_type);
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return len;
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}
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static DEVICE_ATTR(current_protocol, S_IRUGO | S_IWUSR,
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show_protocol, NULL);
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show_protocol, store_protocol);
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static struct attribute *ir_dev_attrs[] = {
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&dev_attr_current_protocol.attr,
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