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authorJiri Kosina <jkosina@suse.cz>2018-10-23 13:17:27 +0200
committerJiri Kosina <jkosina@suse.cz>2018-10-23 13:17:27 +0200
commitd93af50ed68c0f079fa10491c6bd56daf74d601b (patch)
tree5fa3f21d3cfda844812b6779da1a26985e450cad /drivers/hid
parent037ad063f7977176323da9299102e706674486e5 (diff)
parent8473a93d1ba5385f63a128a285702ccc1d3ae2cc (diff)
downloadlinux-d93af50ed68c0f079fa10491c6bd56daf74d601b.tar.bz2
Merge branch 'for-4.20/core' into for-linus
Fixes and new features for driver core. Highlights: - maximum global item tag report size gets increased to 256 - improved INPUT_PROP reporting for Digitizer devices
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-core.c2
-rw-r--r--drivers/hid/hid-input.c19
2 files changed, 16 insertions, 5 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 44564f61e9cc..5bec9244c45b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -406,7 +406,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
parser->global.report_size = item_udata(item);
- if (parser->global.report_size > 128) {
+ if (parser->global.report_size > 256) {
hid_err(parser->device, "invalid report_size %d\n",
parser->global.report_size);
return -1;
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index a481eaf39e88..ad823a01bd65 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -758,6 +758,11 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
break;
case HID_UP_DIGITIZER:
+ if ((field->application & 0xff) == 0x01) /* Digitizer */
+ __set_bit(INPUT_PROP_POINTER, input->propbit);
+ else if ((field->application & 0xff) == 0x02) /* Pen */
+ __set_bit(INPUT_PROP_DIRECT, input->propbit);
+
switch (usage->hid & 0xff) {
case 0x00: /* Undefined */
goto ignore;
@@ -1516,6 +1521,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
struct input_dev *input_dev = input_allocate_device();
const char *suffix = NULL;
+ size_t suffix_len, name_len;
if (!hidinput || !input_dev)
goto fail;
@@ -1559,10 +1565,15 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
}
if (suffix) {
- hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
- hid->name, suffix);
- if (!hidinput->name)
- goto fail;
+ name_len = strlen(hid->name);
+ suffix_len = strlen(suffix);
+ if ((name_len < suffix_len) ||
+ strcmp(hid->name + name_len - suffix_len, suffix)) {
+ hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
+ hid->name, suffix);
+ if (!hidinput->name)
+ goto fail;
+ }
}
input_set_drvdata(input_dev, hid);