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| author | Marc Dietrich <marvin24@gmx.de> | 2011-12-26 17:57:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-31 10:27:58 -0800 |
| commit | 0eedab704ed93d03b1ac392fd329f7ed20ab2279 (patch) | |
| tree | b518506005d72632e6d85229451d849e012349fe /drivers | |
| parent | 4b625c3abe91fca5b5a7f05681c10105af957e4f (diff) | |
| download | linux-stable-0eedab704ed93d03b1ac392fd329f7ed20ab2279.tar.gz linux-stable-0eedab704ed93d03b1ac392fd329f7ed20ab2279.tar.bz2 linux-stable-0eedab704ed93d03b1ac392fd329f7ed20ab2279.zip | |
staging: nvec: ps2: add some more debug functions
This can print the mouse traffic which goes over the i2c bus. Make
mouse debugging messages configurable and disable them by default.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Julian Andres Klode <jak@jak-linux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/nvec/nvec_ps2.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c index 8bfaccd04ac9..7f470ba1160c 100644 --- a/drivers/staging/nvec/nvec_ps2.c +++ b/drivers/staging/nvec/nvec_ps2.c @@ -25,6 +25,14 @@ #define STOP_STREAMING {'\x06', '\x04'} #define SEND_COMMAND {'\x06', '\x01', '\xf4', '\x01'} +#ifdef NVEC_PS2_DEBUG +#define NVEC_PHD(str, buf, len) \ + print_hex_dump(KERN_DEBUG, str, DUMP_PREFIX_NONE, \ + 16, 1, buf, len, false) +#else +#define NVEC_PHD(str, buf, len) +#endif + static const unsigned char MOUSE_RESET[] = {'\x06', '\x01', '\xff', '\x03'}; struct nvec_ps2 { @@ -67,18 +75,18 @@ static int nvec_ps2_notifier(struct notifier_block *nb, case NVEC_PS2_EVT: for (i = 0; i < msg[1]; i++) serio_interrupt(ps2_dev.ser_dev, msg[2 + i], 0); + NVEC_PHD("ps/2 mouse event: ", &msg[2], msg[1]); return NOTIFY_STOP; case NVEC_PS2: - if (msg[2] == 1) + if (msg[2] == 1) { for (i = 0; i < (msg[1] - 2); i++) serio_interrupt(ps2_dev.ser_dev, msg[i + 4], 0); - else if (msg[1] != 2) { /* !ack */ - print_hex_dump(KERN_WARNING, "unhandled mouse event: ", - DUMP_PREFIX_NONE, 16, 1, - msg, msg[1] + 2, true); + NVEC_PHD("ps/2 mouse reply: ", &msg[4], msg[1] - 2); } + else if (msg[1] != 2) /* !ack */ + NVEC_PHD("unhandled mouse event: ", msg, msg[1] + 2); return NOTIFY_STOP; } |