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authorJohan Korsnes <jkorsnes@cisco.com>2020-01-17 13:08:36 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-03-05 16:43:42 +0100
commitd310188d4ef6d0f1a93a16ba60f44eae294d9bb8 (patch)
tree9a19aa921f18dc016554035b726ea11011ac3a6c /include
parent819f8ab78a31298807bc37bf5ff4b32def0645ea (diff)
HID: core: increase HID report buffer size to 8KiB
commit 84a4062632462c4320704fcdf8e99e89e94c0aba upstream. We have a HID touch device that reports its opens and shorts test results in HID buffers of size 8184 bytes. The maximum size of the HID buffer is currently set to 4096 bytes, causing probe of this device to fail. With this patch we increase the maximum size of the HID buffer to 8192 bytes, making device probe and acquisition of said buffers succeed. Signed-off-by: Johan Korsnes <jkorsnes@cisco.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Armando Visconti <armando.visconti@st.com> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/hid.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h
index cd41f209043f..875f71132b14 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -492,7 +492,7 @@ struct hid_report_enum {
};
#define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */
-#define HID_MAX_BUFFER_SIZE 4096 /* 4kb */
+#define HID_MAX_BUFFER_SIZE 8192 /* 8kb */
#define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */
#define HID_OUTPUT_FIFO_SIZE 64