diff options
Diffstat (limited to 'drivers/media/IR')
| -rw-r--r-- | drivers/media/IR/ir-sysfs.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c index c0c4dc25059..e84f9783b8c 100644 --- a/drivers/media/IR/ir-sysfs.c +++ b/drivers/media/IR/ir-sysfs.c @@ -45,6 +45,8 @@ static struct { { IR_TYPE_SONY, "sony" }, }; +#define PROTO_NONE "none" + /** * show_protocols() - shows the current IR protocol(s) * @d: the device descriptor @@ -101,6 +103,7 @@ static ssize_t show_protocols(struct device *d, * Writing "+proto" will add a protocol to the list of enabled protocols. * Writing "-proto" will remove a protocol from the list of enabled protocols. * Writing "proto" will enable only "proto". + * Writing "none" will disable all protocols. * Returns -EINVAL if an invalid protocol combination or unknown protocol name * is used, otherwise @len. */ @@ -134,16 +137,22 @@ static ssize_t store_protocols(struct device *d, disable = false; } - for (i = 0; i < ARRAY_SIZE(proto_names); i++) { - if (!strncasecmp(tmp, proto_names[i].name, strlen(proto_names[i].name))) { - tmp += strlen(proto_names[i].name); - mask = proto_names[i].type; - break; + + if (!enable && !disable && !strncasecmp(tmp, PROTO_NONE, sizeof(PROTO_NONE))) { + mask = 0; + tmp += sizeof(PROTO_NONE); + } else { + for (i = 0; i < ARRAY_SIZE(proto_names); i++) { + if (!strncasecmp(tmp, proto_names[i].name, strlen(proto_names[i].name))) { + tmp += strlen(proto_names[i].name); + mask = proto_names[i].type; + break; + } + } + if (i == ARRAY_SIZE(proto_names)) { + IR_dprintk(1, "Unknown protocol\n"); + return -EINVAL; } - } - if (i == ARRAY_SIZE(proto_names)) { - IR_dprintk(1, "Unknown protocol\n"); - return -EINVAL; } tmp = skip_spaces(tmp); |