From: Marc Dietrich <[email protected]> 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 <[email protected]> Signed-off-by: Julian Andres Klode <[email protected]> --- 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 8bfaccd..7f470ba 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; } -- 1.7.7.3 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
