]> sigrok.org Git - libsigrok.git/blobdiff - hwdriver.c
Add support for the UNI-T UT61C multimeter.
[libsigrok.git] / hwdriver.c
index 100063d85cf793271104e4836a622763757ad75a..3db22a7bd828d1a9c4d40a8fef0b121266b5533f 100644 (file)
@@ -1,7 +1,7 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
  *
- * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -27,6 +27,8 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
+#define LOG_PREFIX "hwdriver"
+
 /**
  * @file
  *
@@ -52,6 +54,12 @@ static struct sr_config_info sr_config_info_data[] = {
                "Pre-trigger capture ratio", NULL},
        {SR_CONF_PATTERN_MODE, SR_T_CHAR, "pattern",
                "Pattern generator mode", NULL},
+       {SR_CONF_TRIGGER_TYPE, SR_T_CHAR, "triggertype",
+               "Trigger types", NULL},
+       {SR_CONF_EXTERNAL_CLOCK, SR_T_BOOL, "external_clock",
+               "External clock mode", NULL},
+       {SR_CONF_SWAP, SR_T_BOOL, "swap",
+               "Swap channel order", NULL},
        {SR_CONF_RLE, SR_T_BOOL, "rle",
                "Run Length Encoding", NULL},
        {SR_CONF_TRIGGER_SLOPE, SR_T_UINT64, "triggerslope",
@@ -70,50 +78,113 @@ static struct sr_config_info sr_config_info_data[] = {
                "Volts/div", NULL},
        {SR_CONF_COUPLING, SR_T_CHAR, "coupling",
                "Coupling", NULL},
+       {SR_CONF_DATALOG, SR_T_BOOL, "datalog",
+               "Datalog", NULL},
+       {SR_CONF_SPL_WEIGHT_FREQ, SR_T_CHAR, "spl_weight_freq",
+               "Sound pressure level frequency weighting", NULL},
+       {SR_CONF_SPL_WEIGHT_TIME, SR_T_CHAR, "spl_weight_time",
+               "Sound pressure level time weighting", NULL},
+       {SR_CONF_HOLD_MAX, SR_T_BOOL, "hold_max",
+               "Hold max", NULL},
+       {SR_CONF_HOLD_MIN, SR_T_BOOL, "hold_min",
+               "Hold min", NULL},
+       {SR_CONF_SPL_MEASUREMENT_RANGE, SR_T_UINT64_RANGE, "spl_meas_range",
+               "Sound pressure level measurement range", NULL},
+       {SR_CONF_VOLTAGE_THRESHOLD, SR_T_DOUBLE_RANGE, "voltage_threshold",
+               "Voltage threshold", NULL },
+       {SR_CONF_POWER_OFF, SR_T_BOOL, "power_off",
+               "Power off", NULL},
+       {SR_CONF_DATA_SOURCE, SR_T_CHAR, "data_source",
+               "Data source", NULL},
+       {SR_CONF_NUM_LOGIC_PROBES, SR_T_INT32, "logic_probes",
+               "Number of logic probes", NULL},
+       {SR_CONF_NUM_ANALOG_PROBES, SR_T_INT32, "analog_probes",
+               "Number of analog probes", NULL},
        {0, 0, NULL, NULL, NULL},
 };
 
 /** @cond PRIVATE */
+#ifdef HAVE_HW_APPA_55II
+extern SR_PRIV struct sr_dev_driver appa_55ii_driver_info;
+#endif
+#ifdef HAVE_HW_BRYMEN_DMM
+extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info;
+#endif
+#ifdef HAVE_HW_CEM_DT_885X
+extern SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
+#endif
+#ifdef HAVE_HW_CENTER_3XX
+extern SR_PRIV struct sr_dev_driver center_309_driver_info;
+extern SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info;
+#endif
 #ifdef HAVE_HW_COLEAD_SLM
 extern SR_PRIV struct sr_dev_driver colead_slm_driver_info;
 #endif
-#ifdef HAVE_LA_DEMO
+#ifdef HAVE_HW_DEMO
 extern SR_PRIV struct sr_dev_driver demo_driver_info;
 #endif
+#ifdef HAVE_HW_GMC_MH_1X_2X
+extern SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info;
+#endif
+#ifdef HAVE_HW_HAMEG_HMO
+extern SR_PRIV struct sr_dev_driver hameg_hmo_driver_info;
+#endif
+#ifdef HAVE_HW_IKALOGIC_SCANALOGIC2
+extern SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
+#endif
+#ifdef HAVE_HW_IKALOGIC_SCANAPLUS
+extern SR_PRIV struct sr_dev_driver ikalogic_scanaplus_driver_info;
+#endif
+#ifdef HAVE_HW_KECHENG_KC_330B
+extern SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info;
+#endif
 #ifdef HAVE_HW_LASCAR_EL_USB
 extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info;
 #endif
-#ifdef HAVE_HW_NEXUS_OSCIPRIME
-extern SR_PRIV struct sr_dev_driver nexus_osciprime_driver_info;
+#ifdef HAVE_HW_MIC_985XX
+extern SR_PRIV struct sr_dev_driver mic_98581_driver_info;
+extern SR_PRIV struct sr_dev_driver mic_98583_driver_info;
 #endif
-#ifdef HAVE_LA_OLS
+#ifdef HAVE_HW_NORMA_DMM
+extern SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
+#endif
+#ifdef HAVE_HW_OLS
 extern SR_PRIV struct sr_dev_driver ols_driver_info;
 #endif
-#ifdef HAVE_HW_RIGOL_DS1XX2
-extern SR_PRIV struct sr_dev_driver rigol_ds1xx2_driver_info;
+#ifdef HAVE_HW_RIGOL_DS
+extern SR_PRIV struct sr_dev_driver rigol_ds_driver_info;
+#endif
+#ifdef HAVE_HW_SALEAE_LOGIC16
+extern SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
+#endif
+#ifdef HAVE_HW_TELEINFO
+extern SR_PRIV struct sr_dev_driver teleinfo_driver_info;
 #endif
 #ifdef HAVE_HW_TONDAJ_SL_814
 extern SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
 #endif
+#ifdef HAVE_HW_UNI_T_UT32X
+extern SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
+#endif
 #ifdef HAVE_HW_VICTOR_DMM
 extern SR_PRIV struct sr_dev_driver victor_dmm_driver_info;
 #endif
-#ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE
+#ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE
 extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
 #endif
-#ifdef HAVE_LA_ASIX_SIGMA
+#ifdef HAVE_HW_ASIX_SIGMA
 extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
 #endif
-#ifdef HAVE_LA_CHRONOVU_LA8
+#ifdef HAVE_HW_CHRONOVU_LA8
 extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info;
 #endif
-#ifdef HAVE_LA_LINK_MSO19
+#ifdef HAVE_HW_LINK_MSO19
 extern SR_PRIV struct sr_dev_driver link_mso19_driver_info;
 #endif
 #ifdef HAVE_HW_ALSA
 extern SR_PRIV struct sr_dev_driver alsa_driver_info;
 #endif
-#ifdef HAVE_LA_FX2LAFW
+#ifdef HAVE_HW_FX2LAFW
 extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 #endif
 #ifdef HAVE_HW_HANTEK_DSO
@@ -126,6 +197,7 @@ extern SR_PRIV struct sr_dev_driver agdmm_driver_info;
 extern SR_PRIV struct sr_dev_driver flukedmm_driver_info;
 #endif
 #ifdef HAVE_HW_SERIAL_DMM
+extern SR_PRIV struct sr_dev_driver bbcgm_m2110_driver_info;
 extern SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info;
 extern SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info;
 extern SR_PRIV struct sr_dev_driver metex_me31_driver_info;
@@ -133,61 +205,121 @@ extern SR_PRIV struct sr_dev_driver peaktech_3410_driver_info;
 extern SR_PRIV struct sr_dev_driver mastech_mas345_driver_info;
 extern SR_PRIV struct sr_dev_driver va_va18b_driver_info;
 extern SR_PRIV struct sr_dev_driver metex_m3640d_driver_info;
+extern SR_PRIV struct sr_dev_driver metex_m4650cr_driver_info;
 extern SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
 extern SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
 extern SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
+extern SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info;
 extern SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
+extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver voltcraft_m3650d_driver_info;
+extern SR_PRIV struct sr_dev_driver voltcraft_m4650cr_driver_info;
 extern SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver voltcraft_vc830_ser_driver_info;
 extern SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut60a_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut60e_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut61c_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info;
 extern SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info;
+extern SR_PRIV struct sr_dev_driver iso_tech_idm103n_driver_info;
 #endif
 #ifdef HAVE_HW_UNI_T_DMM
+extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info;
 extern SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
+extern SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
 extern SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
+extern SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
+extern SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
+extern SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;
 #endif
 /** @endcond */
 
 static struct sr_dev_driver *drivers_list[] = {
+#ifdef HAVE_HW_APPA_55II
+       &appa_55ii_driver_info,
+#endif
+#ifdef HAVE_HW_BRYMEN_DMM
+       &brymen_bm857_driver_info,
+#endif
+#ifdef HAVE_HW_CEM_DT_885X
+       &cem_dt_885x_driver_info,
+#endif
+#ifdef HAVE_HW_CENTER_3XX
+       &center_309_driver_info,
+       &voltcraft_k204_driver_info,
+#endif
 #ifdef HAVE_HW_COLEAD_SLM
        &colead_slm_driver_info,
 #endif
-#ifdef HAVE_LA_DEMO
+#ifdef HAVE_HW_DEMO
        &demo_driver_info,
 #endif
+#ifdef HAVE_HW_GMC_MH_1X_2X
+       &gmc_mh_1x_2x_rs232_driver_info,
+#endif
+#ifdef HAVE_HW_HAMEG_HMO
+       &hameg_hmo_driver_info,
+#endif
+#ifdef HAVE_HW_IKALOGIC_SCANALOGIC2
+       &ikalogic_scanalogic2_driver_info,
+#endif
+#ifdef HAVE_HW_IKALOGIC_SCANAPLUS
+       &ikalogic_scanaplus_driver_info,
+#endif
+#ifdef HAVE_HW_KECHENG_KC_330B
+       &kecheng_kc_330b_driver_info,
+#endif
 #ifdef HAVE_HW_LASCAR_EL_USB
        &lascar_el_usb_driver_info,
 #endif
-#ifdef HAVE_HW_NEXUS_OSCIPRIME
-       &nexus_osciprime_driver_info,
+#ifdef HAVE_HW_MIC_985XX
+       &mic_98581_driver_info,
+       &mic_98583_driver_info,
+#endif
+#ifdef HAVE_HW_NORMA_DMM
+       &norma_dmm_driver_info,
 #endif
-#ifdef HAVE_LA_OLS
+#ifdef HAVE_HW_OLS
        &ols_driver_info,
 #endif
-#ifdef HAVE_HW_RIGOL_DS1XX2
-       &rigol_ds1xx2_driver_info,
+#ifdef HAVE_HW_RIGOL_DS
+       &rigol_ds_driver_info,
+#endif
+#ifdef HAVE_HW_SALEAE_LOGIC16
+       &saleae_logic16_driver_info,
+#endif
+#ifdef HAVE_HW_TELEINFO
+       &teleinfo_driver_info,
 #endif
 #ifdef HAVE_HW_TONDAJ_SL_814
        &tondaj_sl_814_driver_info,
 #endif
+#ifdef HAVE_HW_UNI_T_UT32X
+       &uni_t_ut32x_driver_info,
+#endif
 #ifdef HAVE_HW_VICTOR_DMM
        &victor_dmm_driver_info,
 #endif
-#ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE
+#ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE
        &zeroplus_logic_cube_driver_info,
 #endif
-#ifdef HAVE_LA_ASIX_SIGMA
+#ifdef HAVE_HW_ASIX_SIGMA
        &asix_sigma_driver_info,
 #endif
-#ifdef HAVE_LA_CHRONOVU_LA8
+#ifdef HAVE_HW_CHRONOVU_LA8
        &chronovu_la8_driver_info,
 #endif
-#ifdef HAVE_LA_LINK_MSO19
+#ifdef HAVE_HW_LINK_MSO19
        &link_mso19_driver_info,
 #endif
 #ifdef HAVE_HW_ALSA
        &alsa_driver_info,
 #endif
-#ifdef HAVE_LA_FX2LAFW
+#ifdef HAVE_HW_FX2LAFW
        &fx2lafw_driver_info,
 #endif
 #ifdef HAVE_HW_HANTEK_DSO
@@ -200,6 +332,7 @@ static struct sr_dev_driver *drivers_list[] = {
        &flukedmm_driver_info,
 #endif
 #ifdef HAVE_HW_SERIAL_DMM
+       &bbcgm_m2110_driver_info,
        &digitek_dt4000zc_driver_info,
        &tekpower_tp4000zc_driver_info,
        &metex_me31_driver_info,
@@ -207,17 +340,36 @@ static struct sr_dev_driver *drivers_list[] = {
        &mastech_mas345_driver_info,
        &va_va18b_driver_info,
        &metex_m3640d_driver_info,
+       &metex_m4650cr_driver_info,
        &peaktech_4370_driver_info,
        &pce_pce_dm32_driver_info,
        &radioshack_22_168_driver_info,
+       &radioshack_22_805_driver_info,
        &radioshack_22_812_driver_info,
+       &tecpel_dmm_8061_ser_driver_info,
+       &voltcraft_m3650d_driver_info,
+       &voltcraft_m4650cr_driver_info,
        &voltcraft_vc820_ser_driver_info,
+       &voltcraft_vc830_ser_driver_info,
        &voltcraft_vc840_ser_driver_info,
+       &uni_t_ut60a_ser_driver_info,
+       &uni_t_ut60e_ser_driver_info,
+       &uni_t_ut61c_ser_driver_info,
+       &uni_t_ut61d_ser_driver_info,
        &uni_t_ut61e_ser_driver_info,
+       &iso_tech_idm103n_driver_info,
 #endif
 #ifdef HAVE_HW_UNI_T_DMM
+       &tecpel_dmm_8061_driver_info,
+       &uni_t_ut60a_driver_info,
+       &uni_t_ut60e_driver_info,
+       &uni_t_ut61c_driver_info,
        &uni_t_ut61d_driver_info,
+       &uni_t_ut61e_driver_info,
        &voltcraft_vc820_driver_info,
+       &voltcraft_vc830_driver_info,
+       &voltcraft_vc840_driver_info,
+       &tenma_72_7745_driver_info,
 #endif
        NULL,
 };
@@ -236,19 +388,38 @@ SR_API struct sr_dev_driver **sr_driver_list(void)
 /**
  * Initialize a hardware driver.
  *
+ * This usually involves memory allocations and variable initializations
+ * within the driver, but _not_ scanning for attached devices.
+ * The API call sr_driver_scan() is used for that.
+ *
  * @param ctx A libsigrok context object allocated by a previous call to
- *             sr_init().
- * @param driver The driver to initialize.
+ *            sr_init(). Must not be NULL.
+ * @param driver The driver to initialize. This must be a pointer to one of
+ *               the entries returned by sr_driver_list(). Must not be NULL.
  *
- * @return SR_OK if all went well, or an error code otherwise.
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid parameters,
+ *         SR_ERR_BUG upon internal errors, or another negative error code
+ *         upon other errors.
  */
 SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver)
 {
+       int ret;
 
-       if (driver->init)
-               return driver->init(ctx);
+       if (!ctx) {
+               sr_err("Invalid libsigrok context, can't initialize.");
+               return SR_ERR_ARG;
+       }
+
+       if (!driver) {
+               sr_err("Invalid driver, can't initialize.");
+               return SR_ERR_ARG;
+       }
+
+       sr_spew("Initializing driver '%s'.", driver->name);
+       if ((ret = driver->init(ctx)) < 0)
+               sr_err("Failed to initialize the driver: %d.", ret);
 
-       return SR_OK;
+       return ret;
 }
 
 /**
@@ -261,21 +432,39 @@ SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver)
  * The order in which the system is scanned for devices is not specified. The
  * caller should not assume or rely on any specific order.
  *
- * @param driver The driver.
- * @param options A list of struct sr_hwopt options to pass to the driver's
- *             scanner.
+ * Before calling sr_driver_scan(), the user must have previously initialized
+ * the driver by calling sr_driver_init().
+ *
+ * @param driver The driver that should scan. This must be a pointer to one of
+ *               the entries returned by sr_driver_list(). Must not be NULL.
+ * @param options A list of 'struct sr_hwopt' options to pass to the driver's
+ *                scanner. Can be NULL/empty.
  *
- * @return A GSList * of struct sr_dev_inst, or NULL if no devices were found.
- * This list must be freed by the caller, but without freeing the data
- * pointed to in the list.
+ * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were
+ *         found (or errors were encountered). This list must be freed by the
+ *         caller using g_slist_free(), but without freeing the data pointed
+ *         to in the list.
  */
 SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options)
 {
+       GSList *l;
+
+       if (!driver) {
+               sr_err("Invalid driver, can't scan for devices.");
+               return NULL;
+       }
 
-       if (driver->scan)
-               return driver->scan(options);
+       if (!driver->priv) {
+               sr_err("Driver not initialized, can't scan for devices.");
+               return NULL;
+       }
 
-       return NULL;
+       l = driver->scan(options);
+
+       sr_spew("Scan of '%s' found %d devices.", driver->name,
+               g_slist_length(l));
+
+       return l;
 }
 
 /** @private */
@@ -291,95 +480,154 @@ SR_PRIV void sr_hw_cleanup_all(void)
        }
 }
 
-SR_PRIV struct sr_config *sr_config_make(int key, const void *value)
+/** A floating reference can be passed in for data.
+ * @private */
+SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data)
 {
        struct sr_config *src;
 
        if (!(src = g_try_malloc(sizeof(struct sr_config))))
                return NULL;
        src->key = key;
-       src->value = value;
+       src->data = g_variant_ref_sink(data);
 
        return src;
 }
 
+/** @private */
+SR_PRIV void sr_config_free(struct sr_config *src)
+{
+
+       if (!src || !src->data) {
+               sr_err("%s: invalid data!", __func__);
+               return;
+       }
+
+       g_variant_unref(src->data);
+       g_free(src);
+
+}
+
 /**
  * Returns information about the given driver or device instance.
  *
  * @param driver The sr_dev_driver struct to query.
- * @param id The type of information, in the form of an SR_CONF_* option.
- * @param data Pointer where the value. will be stored. Must not be NULL.
- * @param sdi Pointer to the struct sr_dev_inst to be checked. Must not be NULL.
+ * @param sdi (optional) If the key is specific to a device, this must
+ *            contain a pointer to the struct sr_dev_inst to be checked.
+ *            Otherwise it must be NULL.
+ * @param probe_group The probe group on the device for which to list the
+ *                    values, or NULL.
+ * @param key The configuration key (SR_CONF_*).
+ * @param data Pointer to a GVariant where the value will be stored. Must
+ *             not be NULL. The caller is given ownership of the GVariant
+ *             and must thus decrease the refcount after use. However if
+ *             this function returns an error code, the field should be
+ *             considered unused, and should not be unreferenced.
  *
  * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG
- *         may be returned by the driver indicating it doesn't know that id,
+ *         may be returned by the driver indicating it doesn't know that key,
  *         but this is not to be flagged as an error by the caller; merely
  *         as an indication that it's not applicable.
  */
-SR_API int sr_config_get(struct sr_dev_driver *driver, int id,
-               const void **data, const struct sr_dev_inst *sdi)
+SR_API int sr_config_get(const struct sr_dev_driver *driver,
+               const struct sr_dev_inst *sdi,
+               const struct sr_probe_group *probe_group,
+               int key, GVariant **data)
 {
        int ret;
 
-       if (driver == NULL || data == NULL)
+       if (!driver || !data)
                return SR_ERR;
 
-       ret = driver->config_get(id, data, sdi);
+       if (!driver->config_get)
+               return SR_ERR_ARG;
+
+       if ((ret = driver->config_get(key, data, sdi, probe_group)) == SR_OK) {
+               /* Got a floating reference from the driver. Sink it here,
+                * caller will need to unref when done with it. */
+               g_variant_ref_sink(*data);
+       }
 
        return ret;
 }
 
-SR_API int sr_config_list(struct sr_dev_driver *driver, int id,
-               const void **data, const struct sr_dev_inst *sdi)
+/**
+ * Set a configuration key in a device instance.
+ *
+ * @param sdi The device instance.
+ * @param probe_group The probe group on the device for which to list the
+ *                    values, or NULL.
+ * @param key The configuration key (SR_CONF_*).
+ * @param data The new value for the key, as a GVariant with GVariantType
+ *        appropriate to that key. A floating reference can be passed
+ *        in; its refcount will be sunk and unreferenced after use.
+ *
+ * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG
+ *         may be returned by the driver indicating it doesn't know that key,
+ *         but this is not to be flagged as an error by the caller; merely
+ *         as an indication that it's not applicable.
+ */
+SR_API int sr_config_set(const struct sr_dev_inst *sdi,
+               const struct sr_probe_group *probe_group,
+               int key, GVariant *data)
 {
        int ret;
 
-       if (driver == NULL || data == NULL)
-               return SR_ERR;
+       g_variant_ref_sink(data);
 
-       if (!driver->config_list)
-               return SR_ERR;
+       if (!sdi || !sdi->driver || !data)
+               ret = SR_ERR;
+       else if (!sdi->driver->config_set)
+               ret = SR_ERR_ARG;
+       else
+               ret = sdi->driver->config_set(key, data, sdi, probe_group);
 
-       ret = driver->config_list(id, data, sdi);
+       g_variant_unref(data);
 
        return ret;
 }
 
 /**
- * Find out if a hardware driver has a specific capability.
+ * List all possible values for a configuration key.
  *
- * @param driver The hardware driver in which to search for the capability.
- * @param hwcap The capability to find in the list.
+ * @param driver The sr_dev_driver struct to query.
+ * @param sdi (optional) If the key is specific to a device, this must
+ *            contain a pointer to the struct sr_dev_inst to be checked.
+ * @param probe_group The probe group on the device for which to list the
+ *                    values, or NULL.
+ * @param key The configuration key (SR_CONF_*).
+ * @param data A pointer to a GVariant where the list will be stored. The
+ *             caller is given ownership of the GVariant and must thus
+ *             unref the GVariant after use. However if this function
+ *             returns an error code, the field should be considered
+ *             unused, and should not be unreferenced.
  *
- * @return TRUE if the specified capability exists in the specified driver,
- *         FALSE otherwise. Also, if 'driver' is NULL or the respective driver
- *         returns an invalid capability list, FALSE is returned.
+ * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG
+ *         may be returned by the driver indicating it doesn't know that key,
+ *         but this is not to be flagged as an error by the caller; merely
+ *         as an indication that it's not applicable.
  */
-SR_API gboolean sr_driver_hwcap_exists(struct sr_dev_driver *driver, int hwcap)
+SR_API int sr_config_list(const struct sr_dev_driver *driver,
+               const struct sr_dev_inst *sdi,
+               const struct sr_probe_group *probe_group,
+               int key, GVariant **data)
 {
-       const int *hwcaps;
-       int i;
-
-       if (!driver) {
-               sr_err("hwdriver: %s: driver was NULL", __func__);
-               return FALSE;
-       }
-
-       if (driver->config_list(SR_CONF_DEVICE_OPTIONS, (const void **)&hwcaps, NULL) != SR_OK)
-               return FALSE;
+       int ret;
 
-       for (i = 0; hwcaps[i]; i++) {
-               if (hwcaps[i] == hwcap)
-                       return TRUE;
-       }
+       if (!driver || !data)
+               ret = SR_ERR;
+       else if (!driver->config_list)
+               ret = SR_ERR_ARG;
+       else if ((ret = driver->config_list(key, data, sdi, probe_group)) == SR_OK)
+               g_variant_ref_sink(*data);
 
-       return FALSE;
+       return ret;
 }
 
 /**
- * Get information about an sr_config key.
+ * Get information about a configuration key.
  *
- * @param opt The sr_config key.
+ * @param key The configuration key.
  *
  * @return A pointer to a struct sr_config_info, or NULL if the key
  *         was not found.
@@ -397,9 +645,9 @@ SR_API const struct sr_config_info *sr_config_info_get(int key)
 }
 
 /**
- * Get information about an sr_config key, by name.
+ * Get information about an configuration key, by name.
  *
- * @param optname The sr_config key.
+ * @param optname The configuration key.
  *
  * @return A pointer to a struct sr_config_info, or NULL if the key
  *         was not found.