2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/types.h>
26 #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
27 #include "libsigrok.h"
28 #include "libsigrok-internal.h"
30 #define LOG_PREFIX "hwdriver"
35 * Hardware driver handling in libsigrok.
39 * @defgroup grp_driver Hardware drivers
41 * Hardware driver handling in libsigrok.
46 static struct sr_config_info sr_config_info_data[] = {
47 {SR_CONF_CONN, SR_T_CHAR, "conn",
49 {SR_CONF_SERIALCOMM, SR_T_CHAR, "serialcomm",
50 "Serial communication", NULL},
51 {SR_CONF_SAMPLERATE, SR_T_UINT64, "samplerate",
53 {SR_CONF_CAPTURE_RATIO, SR_T_UINT64, "captureratio",
54 "Pre-trigger capture ratio", NULL},
55 {SR_CONF_PATTERN_MODE, SR_T_CHAR, "pattern",
56 "Pattern generator mode", NULL},
57 {SR_CONF_TRIGGER_TYPE, SR_T_CHAR, "triggertype",
58 "Trigger types", NULL},
59 {SR_CONF_EXTERNAL_CLOCK, SR_T_BOOL, "external_clock",
60 "External clock mode", NULL},
61 {SR_CONF_SWAP, SR_T_BOOL, "swap",
62 "Swap channel order", NULL},
63 {SR_CONF_RLE, SR_T_BOOL, "rle",
64 "Run Length Encoding", NULL},
65 {SR_CONF_TRIGGER_SLOPE, SR_T_UINT64, "triggerslope",
66 "Trigger slope", NULL},
67 {SR_CONF_TRIGGER_SOURCE, SR_T_CHAR, "triggersource",
68 "Trigger source", NULL},
69 {SR_CONF_HORIZ_TRIGGERPOS, SR_T_FLOAT, "horiz_triggerpos",
70 "Horizontal trigger position", NULL},
71 {SR_CONF_BUFFERSIZE, SR_T_UINT64, "buffersize",
73 {SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase",
75 {SR_CONF_FILTER, SR_T_CHAR, "filter",
76 "Filter targets", NULL},
77 {SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv",
79 {SR_CONF_COUPLING, SR_T_CHAR, "coupling",
81 {SR_CONF_DATALOG, SR_T_BOOL, "datalog",
83 {SR_CONF_SPL_WEIGHT_FREQ, SR_T_CHAR, "spl_weight_freq",
84 "Sound pressure level frequency weighting", NULL},
85 {SR_CONF_SPL_WEIGHT_TIME, SR_T_CHAR, "spl_weight_time",
86 "Sound pressure level time weighting", NULL},
87 {SR_CONF_HOLD_MAX, SR_T_BOOL, "hold_max",
89 {SR_CONF_HOLD_MIN, SR_T_BOOL, "hold_min",
91 {SR_CONF_SPL_MEASUREMENT_RANGE, SR_T_UINT64_RANGE, "spl_meas_range",
92 "Sound pressure level measurement range", NULL},
93 {SR_CONF_VOLTAGE_THRESHOLD, SR_T_DOUBLE_RANGE, "voltage_threshold",
94 "Voltage threshold", NULL },
95 {SR_CONF_POWER_OFF, SR_T_BOOL, "power_off",
97 {SR_CONF_DATA_SOURCE, SR_T_CHAR, "data_source",
99 {SR_CONF_NUM_LOGIC_PROBES, SR_T_INT32, "logic_probes",
100 "Number of logic probes", NULL},
101 {SR_CONF_NUM_ANALOG_PROBES, SR_T_INT32, "analog_probes",
102 "Number of analog probes", NULL},
103 {0, 0, NULL, NULL, NULL},
107 #ifdef HAVE_HW_APPA_55II
108 extern SR_PRIV struct sr_dev_driver appa_55ii_driver_info;
110 #ifdef HAVE_HW_BRYMEN_DMM
111 extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info;
113 #ifdef HAVE_HW_CEM_DT_885X
114 extern SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
116 #ifdef HAVE_HW_CENTER_3XX
117 extern SR_PRIV struct sr_dev_driver center_309_driver_info;
118 extern SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info;
120 #ifdef HAVE_HW_COLEAD_SLM
121 extern SR_PRIV struct sr_dev_driver colead_slm_driver_info;
124 extern SR_PRIV struct sr_dev_driver demo_driver_info;
126 #ifdef HAVE_HW_GMC_MH_1X_2X
127 extern SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info;
129 #ifdef HAVE_HW_HAMEG_HMO
130 extern SR_PRIV struct sr_dev_driver hameg_hmo_driver_info;
132 #ifdef HAVE_HW_IKALOGIC_SCANALOGIC2
133 extern SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
135 #ifdef HAVE_HW_IKALOGIC_SCANAPLUS
136 extern SR_PRIV struct sr_dev_driver ikalogic_scanaplus_driver_info;
138 #ifdef HAVE_HW_KECHENG_KC_330B
139 extern SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info;
141 #ifdef HAVE_HW_LASCAR_EL_USB
142 extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info;
144 #ifdef HAVE_HW_MIC_985XX
145 extern SR_PRIV struct sr_dev_driver mic_98581_driver_info;
146 extern SR_PRIV struct sr_dev_driver mic_98583_driver_info;
148 #ifdef HAVE_HW_NORMA_DMM
149 extern SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
152 extern SR_PRIV struct sr_dev_driver ols_driver_info;
154 #ifdef HAVE_HW_RIGOL_DS
155 extern SR_PRIV struct sr_dev_driver rigol_ds_driver_info;
157 #ifdef HAVE_HW_SALEAE_LOGIC16
158 extern SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
160 #ifdef HAVE_HW_TELEINFO
161 extern SR_PRIV struct sr_dev_driver teleinfo_driver_info;
163 #ifdef HAVE_HW_TONDAJ_SL_814
164 extern SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
166 #ifdef HAVE_HW_UNI_T_UT32X
167 extern SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
169 #ifdef HAVE_HW_VICTOR_DMM
170 extern SR_PRIV struct sr_dev_driver victor_dmm_driver_info;
172 #ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE
173 extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
175 #ifdef HAVE_HW_ASIX_SIGMA
176 extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
178 #ifdef HAVE_HW_CHRONOVU_LA8
179 extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info;
181 #ifdef HAVE_HW_LINK_MSO19
182 extern SR_PRIV struct sr_dev_driver link_mso19_driver_info;
185 extern SR_PRIV struct sr_dev_driver alsa_driver_info;
187 #ifdef HAVE_HW_FX2LAFW
188 extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
190 #ifdef HAVE_HW_HANTEK_DSO
191 extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info;
193 #ifdef HAVE_HW_AGILENT_DMM
194 extern SR_PRIV struct sr_dev_driver agdmm_driver_info;
196 #ifdef HAVE_HW_FLUKE_DMM
197 extern SR_PRIV struct sr_dev_driver flukedmm_driver_info;
199 #ifdef HAVE_HW_SERIAL_DMM
200 extern SR_PRIV struct sr_dev_driver bbcgm_m2110_driver_info;
201 extern SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info;
202 extern SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info;
203 extern SR_PRIV struct sr_dev_driver metex_me31_driver_info;
204 extern SR_PRIV struct sr_dev_driver peaktech_3410_driver_info;
205 extern SR_PRIV struct sr_dev_driver mastech_mas345_driver_info;
206 extern SR_PRIV struct sr_dev_driver va_va18b_driver_info;
207 extern SR_PRIV struct sr_dev_driver va_va40b_driver_info;
208 extern SR_PRIV struct sr_dev_driver metex_m3640d_driver_info;
209 extern SR_PRIV struct sr_dev_driver metex_m4650cr_driver_info;
210 extern SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
211 extern SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
212 extern SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
213 extern SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info;
214 extern SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
215 extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_ser_driver_info;
216 extern SR_PRIV struct sr_dev_driver voltcraft_m3650d_driver_info;
217 extern SR_PRIV struct sr_dev_driver voltcraft_m4650cr_driver_info;
218 extern SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info;
219 extern SR_PRIV struct sr_dev_driver voltcraft_vc830_ser_driver_info;
220 extern SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info;
221 extern SR_PRIV struct sr_dev_driver uni_t_ut60a_ser_driver_info;
222 extern SR_PRIV struct sr_dev_driver uni_t_ut60e_ser_driver_info;
223 extern SR_PRIV struct sr_dev_driver uni_t_ut61b_ser_driver_info;
224 extern SR_PRIV struct sr_dev_driver uni_t_ut61c_ser_driver_info;
225 extern SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info;
226 extern SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info;
227 extern SR_PRIV struct sr_dev_driver iso_tech_idm103n_driver_info;
229 #ifdef HAVE_HW_UNI_T_DMM
230 extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
231 extern SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
232 extern SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
233 extern SR_PRIV struct sr_dev_driver uni_t_ut61b_driver_info;
234 extern SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info;
235 extern SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
236 extern SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
237 extern SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
238 extern SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
239 extern SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
240 extern SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;
244 static struct sr_dev_driver *drivers_list[] = {
245 #ifdef HAVE_HW_APPA_55II
246 &appa_55ii_driver_info,
248 #ifdef HAVE_HW_BRYMEN_DMM
249 &brymen_bm857_driver_info,
251 #ifdef HAVE_HW_CEM_DT_885X
252 &cem_dt_885x_driver_info,
254 #ifdef HAVE_HW_CENTER_3XX
255 ¢er_309_driver_info,
256 &voltcraft_k204_driver_info,
258 #ifdef HAVE_HW_COLEAD_SLM
259 &colead_slm_driver_info,
264 #ifdef HAVE_HW_GMC_MH_1X_2X
265 &gmc_mh_1x_2x_rs232_driver_info,
267 #ifdef HAVE_HW_HAMEG_HMO
268 &hameg_hmo_driver_info,
270 #ifdef HAVE_HW_IKALOGIC_SCANALOGIC2
271 &ikalogic_scanalogic2_driver_info,
273 #ifdef HAVE_HW_IKALOGIC_SCANAPLUS
274 &ikalogic_scanaplus_driver_info,
276 #ifdef HAVE_HW_KECHENG_KC_330B
277 &kecheng_kc_330b_driver_info,
279 #ifdef HAVE_HW_LASCAR_EL_USB
280 &lascar_el_usb_driver_info,
282 #ifdef HAVE_HW_MIC_985XX
283 &mic_98581_driver_info,
284 &mic_98583_driver_info,
286 #ifdef HAVE_HW_NORMA_DMM
287 &norma_dmm_driver_info,
292 #ifdef HAVE_HW_RIGOL_DS
293 &rigol_ds_driver_info,
295 #ifdef HAVE_HW_SALEAE_LOGIC16
296 &saleae_logic16_driver_info,
298 #ifdef HAVE_HW_TELEINFO
299 &teleinfo_driver_info,
301 #ifdef HAVE_HW_TONDAJ_SL_814
302 &tondaj_sl_814_driver_info,
304 #ifdef HAVE_HW_UNI_T_UT32X
305 &uni_t_ut32x_driver_info,
307 #ifdef HAVE_HW_VICTOR_DMM
308 &victor_dmm_driver_info,
310 #ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE
311 &zeroplus_logic_cube_driver_info,
313 #ifdef HAVE_HW_ASIX_SIGMA
314 &asix_sigma_driver_info,
316 #ifdef HAVE_HW_CHRONOVU_LA8
317 &chronovu_la8_driver_info,
319 #ifdef HAVE_HW_LINK_MSO19
320 &link_mso19_driver_info,
325 #ifdef HAVE_HW_FX2LAFW
326 &fx2lafw_driver_info,
328 #ifdef HAVE_HW_HANTEK_DSO
329 &hantek_dso_driver_info,
331 #ifdef HAVE_HW_AGILENT_DMM
334 #ifdef HAVE_HW_FLUKE_DMM
335 &flukedmm_driver_info,
337 #ifdef HAVE_HW_SERIAL_DMM
338 &bbcgm_m2110_driver_info,
339 &digitek_dt4000zc_driver_info,
340 &tekpower_tp4000zc_driver_info,
341 &metex_me31_driver_info,
342 &peaktech_3410_driver_info,
343 &mastech_mas345_driver_info,
344 &va_va18b_driver_info,
345 &va_va40b_driver_info,
346 &metex_m3640d_driver_info,
347 &metex_m4650cr_driver_info,
348 &peaktech_4370_driver_info,
349 &pce_pce_dm32_driver_info,
350 &radioshack_22_168_driver_info,
351 &radioshack_22_805_driver_info,
352 &radioshack_22_812_driver_info,
353 &tecpel_dmm_8061_ser_driver_info,
354 &voltcraft_m3650d_driver_info,
355 &voltcraft_m4650cr_driver_info,
356 &voltcraft_vc820_ser_driver_info,
357 &voltcraft_vc830_ser_driver_info,
358 &voltcraft_vc840_ser_driver_info,
359 &uni_t_ut60a_ser_driver_info,
360 &uni_t_ut60e_ser_driver_info,
361 &uni_t_ut61b_ser_driver_info,
362 &uni_t_ut61c_ser_driver_info,
363 &uni_t_ut61d_ser_driver_info,
364 &uni_t_ut61e_ser_driver_info,
365 &iso_tech_idm103n_driver_info,
367 #ifdef HAVE_HW_UNI_T_DMM
368 &tecpel_dmm_8061_driver_info,
369 &uni_t_ut60a_driver_info,
370 &uni_t_ut60e_driver_info,
371 &uni_t_ut61b_driver_info,
372 &uni_t_ut61c_driver_info,
373 &uni_t_ut61d_driver_info,
374 &uni_t_ut61e_driver_info,
375 &voltcraft_vc820_driver_info,
376 &voltcraft_vc830_driver_info,
377 &voltcraft_vc840_driver_info,
378 &tenma_72_7745_driver_info,
384 * Return the list of supported hardware drivers.
386 * @return Pointer to the NULL-terminated list of hardware driver pointers.
388 SR_API struct sr_dev_driver **sr_driver_list(void)
395 * Initialize a hardware driver.
397 * This usually involves memory allocations and variable initializations
398 * within the driver, but _not_ scanning for attached devices.
399 * The API call sr_driver_scan() is used for that.
401 * @param ctx A libsigrok context object allocated by a previous call to
402 * sr_init(). Must not be NULL.
403 * @param driver The driver to initialize. This must be a pointer to one of
404 * the entries returned by sr_driver_list(). Must not be NULL.
406 * @return SR_OK upon success, SR_ERR_ARG upon invalid parameters,
407 * SR_ERR_BUG upon internal errors, or another negative error code
410 SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver)
415 sr_err("Invalid libsigrok context, can't initialize.");
420 sr_err("Invalid driver, can't initialize.");
424 sr_spew("Initializing driver '%s'.", driver->name);
425 if ((ret = driver->init(ctx)) < 0)
426 sr_err("Failed to initialize the driver: %d.", ret);
432 * Tell a hardware driver to scan for devices.
434 * In addition to the detection, the devices that are found are also
435 * initialized automatically. On some devices, this involves a firmware upload,
436 * or other such measures.
438 * The order in which the system is scanned for devices is not specified. The
439 * caller should not assume or rely on any specific order.
441 * Before calling sr_driver_scan(), the user must have previously initialized
442 * the driver by calling sr_driver_init().
444 * @param driver The driver that should scan. This must be a pointer to one of
445 * the entries returned by sr_driver_list(). Must not be NULL.
446 * @param options A list of 'struct sr_hwopt' options to pass to the driver's
447 * scanner. Can be NULL/empty.
449 * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were
450 * found (or errors were encountered). This list must be freed by the
451 * caller using g_slist_free(), but without freeing the data pointed
454 SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options)
459 sr_err("Invalid driver, can't scan for devices.");
464 sr_err("Driver not initialized, can't scan for devices.");
468 l = driver->scan(options);
470 sr_spew("Scan of '%s' found %d devices.", driver->name,
477 SR_PRIV void sr_hw_cleanup_all(void)
480 struct sr_dev_driver **drivers;
482 drivers = sr_driver_list();
483 for (i = 0; drivers[i]; i++) {
484 if (drivers[i]->cleanup)
485 drivers[i]->cleanup();
489 /** A floating reference can be passed in for data.
491 SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data)
493 struct sr_config *src;
495 if (!(src = g_try_malloc(sizeof(struct sr_config))))
498 src->data = g_variant_ref_sink(data);
504 SR_PRIV void sr_config_free(struct sr_config *src)
507 if (!src || !src->data) {
508 sr_err("%s: invalid data!", __func__);
512 g_variant_unref(src->data);
518 * Returns information about the given driver or device instance.
520 * @param driver The sr_dev_driver struct to query.
521 * @param sdi (optional) If the key is specific to a device, this must
522 * contain a pointer to the struct sr_dev_inst to be checked.
523 * Otherwise it must be NULL.
524 * @param probe_group The probe group on the device for which to list the
526 * @param key The configuration key (SR_CONF_*).
527 * @param data Pointer to a GVariant where the value will be stored. Must
528 * not be NULL. The caller is given ownership of the GVariant
529 * and must thus decrease the refcount after use. However if
530 * this function returns an error code, the field should be
531 * considered unused, and should not be unreferenced.
533 * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG
534 * may be returned by the driver indicating it doesn't know that key,
535 * but this is not to be flagged as an error by the caller; merely
536 * as an indication that it's not applicable.
538 SR_API int sr_config_get(const struct sr_dev_driver *driver,
539 const struct sr_dev_inst *sdi,
540 const struct sr_probe_group *probe_group,
541 int key, GVariant **data)
545 if (!driver || !data)
548 if (!driver->config_get)
551 if ((ret = driver->config_get(key, data, sdi, probe_group)) == SR_OK) {
552 /* Got a floating reference from the driver. Sink it here,
553 * caller will need to unref when done with it. */
554 g_variant_ref_sink(*data);
561 * Set a configuration key in a device instance.
563 * @param sdi The device instance.
564 * @param probe_group The probe group on the device for which to list the
566 * @param key The configuration key (SR_CONF_*).
567 * @param data The new value for the key, as a GVariant with GVariantType
568 * appropriate to that key. A floating reference can be passed
569 * in; its refcount will be sunk and unreferenced after use.
571 * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG
572 * may be returned by the driver indicating it doesn't know that key,
573 * but this is not to be flagged as an error by the caller; merely
574 * as an indication that it's not applicable.
576 SR_API int sr_config_set(const struct sr_dev_inst *sdi,
577 const struct sr_probe_group *probe_group,
578 int key, GVariant *data)
582 g_variant_ref_sink(data);
584 if (!sdi || !sdi->driver || !data)
586 else if (!sdi->driver->config_set)
589 ret = sdi->driver->config_set(key, data, sdi, probe_group);
591 g_variant_unref(data);
597 * List all possible values for a configuration key.
599 * @param driver The sr_dev_driver struct to query.
600 * @param sdi (optional) If the key is specific to a device, this must
601 * contain a pointer to the struct sr_dev_inst to be checked.
602 * @param probe_group The probe group on the device for which to list the
604 * @param key The configuration key (SR_CONF_*).
605 * @param data A pointer to a GVariant where the list will be stored. The
606 * caller is given ownership of the GVariant and must thus
607 * unref the GVariant after use. However if this function
608 * returns an error code, the field should be considered
609 * unused, and should not be unreferenced.
611 * @return SR_OK upon success or SR_ERR in case of error. Note SR_ERR_ARG
612 * may be returned by the driver indicating it doesn't know that key,
613 * but this is not to be flagged as an error by the caller; merely
614 * as an indication that it's not applicable.
616 SR_API int sr_config_list(const struct sr_dev_driver *driver,
617 const struct sr_dev_inst *sdi,
618 const struct sr_probe_group *probe_group,
619 int key, GVariant **data)
623 if (!driver || !data)
625 else if (!driver->config_list)
627 else if ((ret = driver->config_list(key, data, sdi, probe_group)) == SR_OK)
628 g_variant_ref_sink(*data);
634 * Get information about a configuration key.
636 * @param key The configuration key.
638 * @return A pointer to a struct sr_config_info, or NULL if the key
641 SR_API const struct sr_config_info *sr_config_info_get(int key)
645 for (i = 0; sr_config_info_data[i].key; i++) {
646 if (sr_config_info_data[i].key == key)
647 return &sr_config_info_data[i];
654 * Get information about an configuration key, by name.
656 * @param optname The configuration key.
658 * @return A pointer to a struct sr_config_info, or NULL if the key
661 SR_API const struct sr_config_info *sr_config_info_name_get(const char *optname)
665 for (i = 0; sr_config_info_data[i].key; i++) {
666 if (!strcmp(sr_config_info_data[i].id, optname))
667 return &sr_config_info_data[i];
673 /* Unnecessary level of indirection follows. */
676 SR_PRIV int sr_source_remove(int fd)
678 return sr_session_source_remove(fd);
682 SR_PRIV int sr_source_add(int fd, int events, int timeout,
683 sr_receive_data_callback_t cb, void *cb_data)
685 return sr_session_source_add(fd, events, timeout, cb, cb_data);