serial_hid: address constness nits
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@ -591,9 +591,9 @@ static int ser_hid_setup_funcs(struct sr_serial_dev_inst *serial)
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* returns the chip index and advances the spec pointer upon match,
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* returns SER_HID_CHIP_UNKNOWN upon mismatch.
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*/
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static enum ser_hid_chip_t ser_hid_chip_find_enum(char **spec_p)
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static enum ser_hid_chip_t ser_hid_chip_find_enum(const char **spec_p)
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{
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gchar *spec;
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const gchar *spec;
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enum ser_hid_chip_t idx;
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struct ser_hid_chip_functions *desc;
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@ -774,7 +774,8 @@ static int ser_hid_parse_conn_spec(
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serno = g_strdup(p);
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p += strlen(p);
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} else if (!chip) {
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char *copy, *endptr;
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char *copy;
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const char *endptr;
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const char *name;
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copy = g_strdup(p);
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endptr = copy;
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@ -960,7 +961,7 @@ static int ser_hid_chip_search(enum ser_hid_chip_t *chip_ref,
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sr_dbg("DBG: %s(), name %s", __func__, name);
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if (!name || !*name)
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return SR_ERR_NA;
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chip = ser_hid_chip_find_enum((char **)&name);
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chip = ser_hid_chip_find_enum(&name);
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sr_dbg("DBG: %s(), chip %d", __func__, chip);
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if (chip == SER_HID_CHIP_UNKNOWN)
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return SR_ERR_NA;
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@ -1058,7 +1059,7 @@ static int ser_hid_chip_search(enum ser_hid_chip_t *chip_ref,
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sr_dbg("DBG: %s(), name %s", __func__, name);
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if (!name || !*name)
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return SR_ERR_NA;
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chip = ser_hid_chip_find_enum((char **)&name);
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chip = ser_hid_chip_find_enum(&name);
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sr_dbg("DBG: %s(), chip %d", __func__, chip);
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if (chip == SER_HID_CHIP_UNKNOWN)
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return SR_ERR_NA;
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