diff options
Diffstat (limited to 'drivers/input/mouse/synaptics.c')
| -rw-r--r-- | drivers/input/mouse/synaptics.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index da392c22fc6c..aa186cf6c514 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -755,23 +755,26 @@ static int synaptics_reconnect(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; struct synaptics_data old_priv = *priv; + int retry = 0; + int error; - psmouse_reset(psmouse); + do { + psmouse_reset(psmouse); + error = synaptics_detect(psmouse, 0); + } while (error && ++retry < 3); - if (synaptics_detect(psmouse, 0)) + if (error) return -1; + if (retry > 1) + printk(KERN_DEBUG "Synaptics reconnected after %d tries\n", + retry); + if (synaptics_query_hardware(psmouse)) { printk(KERN_ERR "Unable to query Synaptics hardware.\n"); return -1; } - if (old_priv.identity != priv->identity || - old_priv.model_id != priv->model_id || - old_priv.capabilities != priv->capabilities || - old_priv.ext_cap != priv->ext_cap) - return -1; - if (synaptics_set_absolute_mode(psmouse)) { printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); return -1; @@ -782,6 +785,19 @@ static int synaptics_reconnect(struct psmouse *psmouse) return -1; } + if (old_priv.identity != priv->identity || + old_priv.model_id != priv->model_id || + old_priv.capabilities != priv->capabilities || + old_priv.ext_cap != priv->ext_cap) { + printk(KERN_ERR "Synaptics hardware appears to be different: " + "id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", + old_priv.identity, priv->identity, + old_priv.model_id, priv->model_id, + old_priv.capabilities, priv->capabilities, + old_priv.ext_cap, priv->ext_cap); + return -1; + } + return 0; } |