From: Bartosz Golaszewski <redacted>
Date: Wed, 16 Sep 2015 11:30:54 +0000 (+0200)
Subject: baylibre-acme: Check for power-switch presence at probe's initialization.
X-Git-Tag: libsigrok-0.4.0~280
X-Git-Url: http://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=8f1961209b399eb29933168e8126e59b5943f854

baylibre-acme: Check for power-switch presence at probe's initialization.

Only perform a single check at initialization time to see if the probe is
equipped with a power-switch. This is done in preparation for revision B
support which has this kind of information encoded in EEPROM.

Signed-off-by: Bartosz Golaszewski <redacted>
---

diff --git a/src/hardware/baylibre-acme/protocol.c b/src/hardware/baylibre-acme/protocol.c
index 413a0576..4b4d5e4e 100644
--- a/src/hardware/baylibre-acme/protocol.c
+++ b/src/hardware/baylibre-acme/protocol.c
@@ -38,6 +38,7 @@ struct channel_group_priv {
 	int hwmon_num;
 	int probe_type;
 	int index;
+	int has_pws;
 };
 
 struct channel_priv {
@@ -237,6 +238,7 @@ SR_PRIV gboolean bl_acme_register_probe(struct sr_dev_inst *sdi, int type,
 	cgp->hwmon_num = hwmon;
 	cgp->probe_type = type;
 	cgp->index = prb_num - 1;
+	cgp->has_pws = sr_gpio_getval_export(pws_info_gpios[cgp->index]);
 	cg->name = g_strdup_printf("Probe_%d", prb_num);
 	cg->priv = cgp;
 
@@ -267,7 +269,7 @@ SR_PRIV int bl_acme_probe_has_pws(const struct sr_channel_group *cg)
 {
 	struct channel_group_priv *cgp = cg->priv;
 
-	return sr_gpio_getval_export(pws_info_gpios[cgp->index]);
+	return cgp->has_pws;
 }
 
 /*