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[1/2] HID: Allow more fields in the hid report

Message ID 1346858857-281-1-git-send-email-rydberg@euromail.se (mailing list archive)
State New, archived
Delegated to: Jiri Kosina
Headers show

Commit Message

Henrik Rydberg Sept. 5, 2012, 3:27 p.m. UTC 
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(-)
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Patch

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;