On Wed, 1 Aug 2018, Song Hongyan wrote:
> From: "Song, Hongyan" <hongyan.song@xxxxxxxxx>
>
> The maximum globale report size has changed from 32->...->96->128 in
> the past years.
> With the development usage of HID, the report_size max value 128 cannot
> satisfy all requirements. There is a need which report size is 192,
> while max size 128 blocked it as illegal length, so increase the
> report size to satisfy it and more demands in the future.
Could you please be more specific in the changelogs which (groups of)
devices require this?
Thanks.
>
> Signed-off-by: Song Hongyan <hongyan.song@xxxxxxxxx>
> ---
> drivers/hid/hid-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
> index 3942ee6..d9c1d12 100644
> --- a/drivers/hid/hid-core.c
> +++ b/drivers/hid/hid-core.c
> @@ -396,7 +396,7 @@ 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;
--
Jiri Kosina
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
