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Subject[PATCH 1/2] HID: Allow more fields in the hid report
Date
Some recent hardware define more than 128 fields in the report
descriptor. Increase the limit to 256. This adds another kilobyte of
memory per report.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
---
Hi Jiri,

The Flatfrog panel (next patch) reports 188 fields, so 256 seems like
a fair number. I am not overly thrilled about this patch, but the
alternative looks like a major change. At least it will be easy to
backport. :-)

Thanks,
Henrik

include/linux/hid.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index f37da28..7e1f37d 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -414,7 +414,7 @@ struct hid_field {
__u16 dpad; /* dpad input code */
};

-#define HID_MAX_FIELDS 128
+#define HID_MAX_FIELDS 256

struct hid_report {
struct list_head list;
--
1.7.12


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