summaryrefslogtreecommitdiffstats
path: root/drivers/media/common/tuners/xc5000.c
diff options
context:
space:
mode:
authorMichael Krufky <mkrufky@linuxtv.org>2008-05-10 14:34:09 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-05-14 02:56:46 -0300
commit48723543aff1f46091840222490ded5fe09c0e37 (patch)
treece076b78ecae43f7ae22849277db6d496780cc8b /drivers/media/common/tuners/xc5000.c
parent07c87a833e9ef92280ed24ab85cd4eb49cbca9c0 (diff)
V4L/DVB (7893): xc5000: bug-fix: allow multiple devices in a single system
The current code passes a context pointer in the xc5000_config struct. This context pointer is used in the tuner_callback function, used to reset the device after firmware download. The xc5000_config struct is a static structure, whose .priv member was being assigned before calling xc5000_attach(). If there are more than one of the same device type installed on a single system, the last one to assign xc5000_config.priv will "win", and all others will cease to function properly. This patch passes the context pointer in xc5000_attach() rather that storing it within the static struct xc5000_config. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/common/tuners/xc5000.c')
-rw-r--r--drivers/media/common/tuners/xc5000.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c
index 43d35bdb221..ceae6db901e 100644
--- a/drivers/media/common/tuners/xc5000.c
+++ b/drivers/media/common/tuners/xc5000.c
@@ -212,7 +212,7 @@ static void xc5000_TunerReset(struct dvb_frontend *fe)
dprintk(1, "%s()\n", __func__);
if (priv->cfg->tuner_callback) {
- ret = priv->cfg->tuner_callback(priv->cfg->priv,
+ ret = priv->cfg->tuner_callback(priv->devptr,
XC5000_TUNER_RESET, 0);
if (ret)
printk(KERN_ERR "xc5000: reset failed\n");
@@ -900,9 +900,9 @@ static const struct dvb_tuner_ops xc5000_tuner_ops = {
.get_status = xc5000_get_status
};
-struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c,
- struct xc5000_config *cfg)
+struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c,
+ struct xc5000_config *cfg, void *devptr)
{
struct xc5000_priv *priv = NULL;
u16 id = 0;
@@ -916,6 +916,7 @@ struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe,
priv->cfg = cfg;
priv->bandwidth = BANDWIDTH_6_MHZ;
priv->i2c = i2c;
+ priv->devptr = devptr;
/* Check if firmware has been loaded. It is possible that another
instance of the driver has loaded the firmware.