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rigol-ds: fix set_cfg() calls with float parameters to avoid locale issues

This commit is contained in:
Aurelien Jacobs 2014-01-19 14:46:59 +01:00 committed by Martin Ling
parent f76c24f6fd
commit 889ef4a01c
1 changed files with 10 additions and 4 deletions
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12
hardware/rigol-ds/api.c
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@ -552,6 +552,7 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
unsigned int i, j;
int ret;
const char *tmp_str;
char buffer[16];
if (!(devc = sdi->priv))
return SR_ERR_ARG;
@ -586,14 +587,17 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
/* We have the trigger offset as a percentage of the frame, but
* need to express this in seconds. */
t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * devc->num_timebases;
ret = set_cfg(sdi, ":TIM:OFFS %.6f", t_dbl);
g_ascii_formatd(buffer, sizeof(buffer), "%.6f", t_dbl);
ret = set_cfg(sdi, ":TIM:OFFS %s", buffer);
break;
case SR_CONF_TIMEBASE:
g_variant_get(data, "(tt)", &p, &q);
for (i = 0; i < devc->num_timebases; i++) {
if (devc->timebases[i][0] == p && devc->timebases[i][1] == q) {
devc->timebase = (float)p / q;
ret = set_cfg(sdi, ":TIM:SCAL %.9f", devc->timebase);
g_ascii_formatd(buffer, sizeof(buffer), "%.9f",
devc->timebase);
ret = set_cfg(sdi, ":TIM:SCAL %s", buffer);
break;
}
}
@ -637,8 +641,10 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
if (vdivs[j][0] != p || vdivs[j][1] != q)
continue;
devc->vdiv[i] = (float)p / q;
return set_cfg(sdi, ":CHAN%d:SCAL %.3f", i + 1,
g_ascii_formatd(buffer, sizeof(buffer), "%.3f",
devc->vdiv[i]);
return set_cfg(sdi, ":CHAN%d:SCAL %s", i + 1,
buffer);
}
return SR_ERR_ARG;
}