[PATCH] HID: rmi: change logging level of log messages related to unexpected reports

From: Andrew Duggan
Date: Fri Jul 11 2014 - 17:53:28 EST

Userspace tools may use hidraw to perform operations on the device from userspace while
hid-rmi is bound to the device. This can cause hid-rmi to print error messages when its
->raw_event() callback gets called as the reports pass through the HID stack. In this case
receiving responses which were not initiated by hid-rmi is not actually an error so the resulting
error messages are incorrect and misleading. This patch changes the log messages to debug so
that the messages can be turned on in the event that there is a problem and there is not
a userspace tool running.

Signed-off-by: Andrew Duggan <aduggan@xxxxxxxxxxxxx>
drivers/hid/hid-rmi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 578bbe6..25f571a 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -377,7 +377,7 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
irq_mask |= hdata->f30.irq_mask;

if (data[1] & ~irq_mask)
- hid_warn(hdev, "unknown intr source:%02lx %s:%d\n",
+ hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n",
data[1] & ~irq_mask, __FILE__, __LINE__);

if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) {
@@ -400,7 +400,7 @@ static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size)
struct rmi_data *hdata = hid_get_drvdata(hdev);

if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) {
- hid_err(hdev, "no read request pending\n");
+ hid_dbg(hdev, "no read request pending\n");
return 0;


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/