diff options
| author | Tzafrir Cohen <tzafrir.cohen@xorcom.com> | 2008-10-27 16:00:49 +0000 |
|---|---|---|
| committer | Tzafrir Cohen <tzafrir.cohen@xorcom.com> | 2008-10-27 16:00:49 +0000 |
| commit | 120d03c7a545600f7d2c4aa5e5f72cffccf115fa (patch) | |
| tree | f5f150aee155f37ad02027b62b776c870570bbe4 /drivers/dahdi/xpp/card_fxo.c | |
| parent | 1dfdd987165c27d786ef28abd78eca0b67dff62a (diff) | |
xpp fxo: Add sysfs battery attribute.
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@5133 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Diffstat (limited to 'drivers/dahdi/xpp/card_fxo.c')
| -rw-r--r-- | drivers/dahdi/xpp/card_fxo.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/dahdi/xpp/card_fxo.c b/drivers/dahdi/xpp/card_fxo.c index bc0590a..d56382e 100644 --- a/drivers/dahdi/xpp/card_fxo.c +++ b/drivers/dahdi/xpp/card_fxo.c @@ -1313,9 +1313,44 @@ static int proc_xpd_metering_read(char *page, char **start, off_t off, int count } #endif +static DEVICE_ATTR_READER(fxo_battery_show, dev, buf) +{ + xpd_t *xpd; + struct FXO_priv_data *priv; + unsigned long flags; + int len = 0; + int i; + + BUG_ON(!dev); + xpd = dev_to_xpd(dev); + if(!xpd) + return -ENODEV; + priv = xpd->priv; + BUG_ON(!priv); + spin_lock_irqsave(&xpd->lock, flags); + for_each_line(xpd, i) { + char bat; + + if(priv->battery[i] == BATTERY_ON) + bat = '+'; + else if(priv->battery[i] == BATTERY_OFF) + bat = '-'; + else + bat = '.'; + len += sprintf(buf + len, "%c ", bat); + } + len += sprintf(buf + len, "\n"); + spin_unlock_irqrestore(&xpd->lock, flags); + return len; +} + +static DEVICE_ATTR(fxo_battery, S_IRUGO, fxo_battery_show, NULL); + + static int fxo_xpd_probe(struct device *dev) { xpd_t *xpd; + int ret; xpd = dev_to_xpd(dev); /* Is it our device? */ @@ -1325,7 +1360,14 @@ static int fxo_xpd_probe(struct device *dev) return -EINVAL; } XPD_DBG(DEVICES, xpd, "SYSFS\n"); + ret = device_create_file(dev, &dev_attr_fxo_battery); + if(ret) { + XPD_ERR(xpd, "%s: device_create_file(fxo_battery) failed: %d\n", __FUNCTION__, ret); + goto fail_fxo_battery; + } return 0; +fail_fxo_battery: + return ret; } static int fxo_xpd_remove(struct device *dev) @@ -1334,6 +1376,7 @@ static int fxo_xpd_remove(struct device *dev) xpd = dev_to_xpd(dev); XPD_DBG(DEVICES, xpd, "SYSFS\n"); + device_remove_file(dev, &dev_attr_fxo_battery); return 0; } |