static unsigned int maxpoll=250; /* Maximum busy-loop count for qcam I/O */
static unsigned int yieldlines=4; /* Yield after this many during capture */
static int video_nr = -1;
+static unsigned int force_init; /* Whether to probe aggressively */
module_param(maxpoll, int, 0);
module_param(yieldlines, int, 0);
module_param(video_nr, int, 0);
+/* Set force_init=1 to avoid detection by polling status register and
+ * immediately attempt to initialize qcam */
+module_param(force_init, int, 0);
+
static inline int read_lpstatus(struct qcam_device *q)
{
return parport_read_status(q->pport);
int count = 0;
int i;
+ if (force_init)
+ return 1;
+
lastreg = reg = read_lpstatus(q) & 0xf0;
for (i = 0; i < 500; i++)
/* Be (even more) liberal in what you accept... */
-/* if (count > 30 && count < 200) */
if (count > 20 && count < 400) {
return 1; /* found */
} else {
printk(KERN_ERR "No Quickcam found on port %s\n",
q->pport->name);
+ printk(KERN_DEBUG "Quickcam detection counter: %u\n", count);
return 0; /* not found */
}
}
int ret=1;
unsigned int hi, lo;
unsigned int hi2, lo2;
- static int state = 0;
+ static int state;
if (buffer == NULL)
{
.open = video_exclusive_open,
.release = video_exclusive_release,
.ioctl = qcam_ioctl,
+#ifdef CONFIG_COMPAT
.compat_ioctl = v4l_compat_ioctl32,
+#endif
.read = qcam_read,
.llseek = no_llseek,
};
#define MAX_CAMS 4
static struct qcam_device *qcams[MAX_CAMS];
-static unsigned int num_cams = 0;
+static unsigned int num_cams;
static int init_bwqcam(struct parport *port)
{