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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2018-04-24 10:04:33 +0200
committerJiri Kosina <jkosina@suse.cz>2018-04-26 14:17:31 +0200
commitf07b3c1da92db108662f99417a212fc1eddc44d1 (patch)
treed4ad0e580dfab744d34460c80a361e78c7ff47dd /drivers/hid/hid-core.c
parente1b63c0148a7f8edf1691770ec0527fe86fb6ab8 (diff)
HID: generic: create one input report per application type
It is not a good idea to try to fit all types of applications in the same input report. There are a lot of devices that are needing the quirk HID_MULTI_INPUT but this quirk doesn't match the actual HID description as it is based on the report ID. Given that most devices with MULTI_INPUT I can think of split nicely the devices inputs into application, it is a good thing to split the devices by default based on this assumption. Also make hid-multitouch following this rule, to not have to deal with too many input created. While we are at it, fix some checkpatch complaints about converting 'unsigned' to 'unsigned int'. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-core.c')
-rw-r--r--drivers/hid/hid-core.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 5d7cc6bbbac6..68819106f4fc 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -57,7 +57,9 @@ MODULE_PARM_DESC(ignore_special_drivers, "Ignore any special drivers and handle
* Register a new report for a device.
*/
-struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
+struct hid_report *hid_register_report(struct hid_device *device,
+ unsigned int type, unsigned int id,
+ unsigned int application)
{
struct hid_report_enum *report_enum = device->report_enum + type;
struct hid_report *report;
@@ -78,6 +80,7 @@ struct hid_report *hid_register_report(struct hid_device *device, unsigned type,
report->type = type;
report->size = 0;
report->device = device;
+ report->application = application;
report_enum->report_id_hash[id] = report;
list_add_tail(&report->list, &report_enum->report_list);
@@ -221,11 +224,15 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
{
struct hid_report *report;
struct hid_field *field;
- unsigned usages;
- unsigned offset;
- unsigned i;
+ unsigned int usages;
+ unsigned int offset;
+ unsigned int i;
+ unsigned int application;
+
+ application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
- report = hid_register_report(parser->device, report_type, parser->global.report_id);
+ report = hid_register_report(parser->device, report_type,
+ parser->global.report_id, application);
if (!report) {
hid_err(parser->device, "hid_register_report failed\n");
return -1;
@@ -259,7 +266,7 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
- field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
+ field->application = application;
for (i = 0; i < usages; i++) {
unsigned j = i;