Use consistent __init__() format across all PDs.

The previous **kwargs some PDs had is not actually ever used, so drop it.

57 files changed, 57 insertions, 57 deletions

diff --git a/decoders/adns5020/pd.py b/decoders/adns5020/pd.py
index 29b6397..972227e 100644
--- a/decoders/adns5020/pd.py
+++ b/decoders/adns5020/pd.py
@@ -59,7 +59,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (2,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ss_cmd, self.es_cmd = 0, 0
         self.mosi_bytes = []
 
diff --git a/decoders/am230x/pd.py b/decoders/am230x/pd.py
index 2b54cde..483dc9b 100644
--- a/decoders/am230x/pd.py
+++ b/decoders/am230x/pd.py
@@ -123,7 +123,7 @@ class Decoder(srd.Decoder):
             checksum += self.bits2num(bitlist[i-8:i])
         return checksum % 256
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.reset()
 
diff --git a/decoders/arm_etmv3/pd.py b/decoders/arm_etmv3/pd.py
index 0083fdb..367ceb8 100644
--- a/decoders/arm_etmv3/pd.py
+++ b/decoders/arm_etmv3/pd.py
@@ -170,7 +170,7 @@ class Decoder(srd.Decoder):
             'default': 'alternative', 'values': ('alternative', 'original')},
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.buf = []
         self.syncbuf = []
         self.prevsample = 0
diff --git a/decoders/arm_itm/pd.py b/decoders/arm_itm/pd.py
index f6a0212..384999c 100644
--- a/decoders/arm_itm/pd.py
+++ b/decoders/arm_itm/pd.py
@@ -80,7 +80,7 @@ class Decoder(srd.Decoder):
         ('function', 'Current function', (11,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.buf = []
         self.syncbuf = []
         self.swpackets = {}
diff --git a/decoders/arm_tpiu/pd.py b/decoders/arm_tpiu/pd.py
index 02b7ad2..cf5e875 100644
--- a/decoders/arm_tpiu/pd.py
+++ b/decoders/arm_tpiu/pd.py
@@ -42,7 +42,7 @@ class Decoder(srd.Decoder):
         ('data', 'Stream data', (1,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.buf = []
         self.syncbuf = []
         self.prevsample = 0
diff --git a/decoders/aud/pd.py b/decoders/aud/pd.py
index 6be1f83..a5330f9 100644
--- a/decoders/aud/pd.py
+++ b/decoders/aud/pd.py
@@ -46,7 +46,7 @@ class Decoder(srd.Decoder):
         ('dest', 'Destination address'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ncnt = 0
         self.nmax = 0
         self.addr = 0
diff --git a/decoders/avr_isp/pd.py b/decoders/avr_isp/pd.py
index 0914b5b..16e3d70 100644
--- a/decoders/avr_isp/pd.py
+++ b/decoders/avr_isp/pd.py
@@ -51,7 +51,7 @@ class Decoder(srd.Decoder):
         ('dev', 'Device', (9,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.mosi_bytes, self.miso_bytes = [], []
         self.ss_cmd, self.es_cmd = 0, 0
diff --git a/decoders/can/pd.py b/decoders/can/pd.py
index ffc3652..c92877b 100644
--- a/decoders/can/pd.py
+++ b/decoders/can/pd.py
@@ -64,7 +64,7 @@ class Decoder(srd.Decoder):
         ('fields', 'Fields', tuple(range(15)) + (16,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.reset_variables()
 
diff --git a/decoders/dcf77/pd.py b/decoders/dcf77/pd.py
index cbdfa87..4f956aa 100644
--- a/decoders/dcf77/pd.py
+++ b/decoders/dcf77/pd.py
@@ -65,7 +65,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (19,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.state = 'WAIT FOR RISING EDGE'
         self.oldpins = None
diff --git a/decoders/ds1307/pd.py b/decoders/ds1307/pd.py
index cb5fc13..6d862af 100644
--- a/decoders/ds1307/pd.py
+++ b/decoders/ds1307/pd.py
@@ -75,7 +75,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (28,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.hours = -1
         self.minutes = -1
diff --git a/decoders/edid/pd.py b/decoders/edid/pd.py
index ae2f839..389fbda 100644
--- a/decoders/edid/pd.py
+++ b/decoders/edid/pd.py
@@ -90,7 +90,7 @@ class Decoder(srd.Decoder):
         ('fields', 'Fields', (0,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = None
         # Received data items, used as an index into samplenum/data
         self.cnt = 0
diff --git a/decoders/eeprom24xx/pd.py b/decoders/eeprom24xx/pd.py
index 386431e..73269a6 100644
--- a/decoders/eeprom24xx/pd.py
+++ b/decoders/eeprom24xx/pd.py
@@ -73,7 +73,7 @@ class Decoder(srd.Decoder):
         ('binary', 'Binary'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.reset()
 
     def start(self):
diff --git a/decoders/em4100/pd.py b/decoders/em4100/pd.py
index 4f2751b..d47b43e 100644
--- a/decoders/em4100/pd.py
+++ b/decoders/em4100/pd.py
@@ -62,7 +62,7 @@ class Decoder(srd.Decoder):
         ('tags', 'Tags', (9,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.oldpin = None
         self.last_samplenum = None
diff --git a/decoders/guess_bitrate/pd.py b/decoders/guess_bitrate/pd.py
index 250d519..92d3520 100644
--- a/decoders/guess_bitrate/pd.py
+++ b/decoders/guess_bitrate/pd.py
@@ -42,7 +42,7 @@ class Decoder(srd.Decoder):
     def putx(self, data):
         self.put(self.ss_edge, self.samplenum, self.out_ann, data)
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.olddata = None
         self.ss_edge = None
         self.first_transition = True
diff --git a/decoders/i2c/pd.py b/decoders/i2c/pd.py
index 2b8b302..a056ef5 100644
--- a/decoders/i2c/pd.py
+++ b/decoders/i2c/pd.py
@@ -108,7 +108,7 @@ class Decoder(srd.Decoder):
         ('data-write', 'Data write'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.ss = self.es = self.ss_byte = -1
         self.samplenum = None
diff --git a/decoders/i2cdemux/pd.py b/decoders/i2cdemux/pd.py
index 68b75a0..5e83a21 100644
--- a/decoders/i2cdemux/pd.py
+++ b/decoders/i2cdemux/pd.py
@@ -30,7 +30,7 @@ class Decoder(srd.Decoder):
     inputs = ['i2c']
     outputs = [] # TODO: Only known at run-time.
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.packets = [] # Local cache of I²C packets
         self.slaves = [] # List of known slave addresses
         self.stream = -1 # Current output stream
diff --git a/decoders/i2cfilter/pd.py b/decoders/i2cfilter/pd.py
index 3c02a2e..c3f148f 100644
--- a/decoders/i2cfilter/pd.py
+++ b/decoders/i2cfilter/pd.py
@@ -38,7 +38,7 @@ class Decoder(srd.Decoder):
             'values': ('read', 'write', 'both')}
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.curslave = -1
         self.curdirection = None
         self.packets = [] # Local cache of I²C packets
diff --git a/decoders/i2s/pd.py b/decoders/i2s/pd.py
index 6b94c10..3287a72 100644
--- a/decoders/i2s/pd.py
+++ b/decoders/i2s/pd.py
@@ -59,7 +59,7 @@ class Decoder(srd.Decoder):
         ('wav', 'WAV file'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.oldsck = 1
         self.oldws = 1
diff --git a/decoders/ir_nec/pd.py b/decoders/ir_nec/pd.py
index d14c7d3..8c589fa 100644
--- a/decoders/ir_nec/pd.py
+++ b/decoders/ir_nec/pd.py
@@ -99,7 +99,7 @@ class Decoder(srd.Decoder):
                  [11, ['%s: %s' % (dev, btn[0]), '%s: %s' % (dev, btn[1]),
                  '%s' % btn[1]]])
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.ss_bit = self.ss_start = self.ss_other_edge = self.ss_remote = 0
         self.data = self.count = self.active = self.old_ir = None
diff --git a/decoders/ir_rc5/pd.py b/decoders/ir_rc5/pd.py
index e1dd42f..ae20d3a 100644
--- a/decoders/ir_rc5/pd.py
+++ b/decoders/ir_rc5/pd.py
@@ -56,7 +56,7 @@ class Decoder(srd.Decoder):
         ('fields', 'Fields', (1, 2, 3, 4, 5, 6)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.samplenum = None
         self.edges, self.bits, self.ss_es_bits = [], [], []
diff --git a/decoders/jitter/pd.py b/decoders/jitter/pd.py
index 6dbc27a..c3579a8 100644
--- a/decoders/jitter/pd.py
+++ b/decoders/jitter/pd.py
@@ -63,7 +63,7 @@ class Decoder(srd.Decoder):
         ('ascii-float', 'Jitter values as newline-separated ASCII floats'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'CLK'
         self.samplerate = None
         self.oldpin = None
diff --git a/decoders/jtag/pd.py b/decoders/jtag/pd.py
index aaa9b6a..83d4b28 100644
--- a/decoders/jtag/pd.py
+++ b/decoders/jtag/pd.py
@@ -88,7 +88,7 @@ class Decoder(srd.Decoder):
         ('states', 'States', tuple(range(15 + 1))),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         # self.state = 'TEST-LOGIC-RESET'
         self.state = 'RUN-TEST/IDLE'
         self.oldstate = None
diff --git a/decoders/jtag_stm32/pd.py b/decoders/jtag_stm32/pd.py
index bc3a4c7..ff5bb77 100644
--- a/decoders/jtag_stm32/pd.py
+++ b/decoders/jtag_stm32/pd.py
@@ -156,7 +156,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (3,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.samplenums = None
 
diff --git a/decoders/lm75/pd.py b/decoders/lm75/pd.py
index 6b2bfa8..50e3c91 100644
--- a/decoders/lm75/pd.py
+++ b/decoders/lm75/pd.py
@@ -62,7 +62,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Human-readable warnings'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.reg = 0x00 # Currently selected register
         self.databytes = []
diff --git a/decoders/lpc/pd.py b/decoders/lpc/pd.py
index 5e25db4..9368394 100644
--- a/decoders/lpc/pd.py
+++ b/decoders/lpc/pd.py
@@ -136,7 +136,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (0,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.oldlclk = -1
         self.samplenum = 0
diff --git a/decoders/maxim_ds28ea00/pd.py b/decoders/maxim_ds28ea00/pd.py
index 229331f..c7ff7df 100644
--- a/decoders/maxim_ds28ea00/pd.py
+++ b/decoders/maxim_ds28ea00/pd.py
@@ -48,7 +48,7 @@ class Decoder(srd.Decoder):
         ('text', 'Human-readable text'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.trn_beg = 0
         self.trn_end = 0
         self.state = 'ROM'
diff --git a/decoders/midi/pd.py b/decoders/midi/pd.py
index 5915976..1616af1 100644
--- a/decoders/midi/pd.py
+++ b/decoders/midi/pd.py
@@ -37,7 +37,7 @@ class Decoder(srd.Decoder):
         ('text-verbose', 'Human-readable text (verbose)'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.cmd = []
         self.state = 'IDLE'
         self.ss = None
diff --git a/decoders/mlx90614/pd.py b/decoders/mlx90614/pd.py
index aa1ead5..0a3abba 100644
--- a/decoders/mlx90614/pd.py
+++ b/decoders/mlx90614/pd.py
@@ -34,7 +34,7 @@ class Decoder(srd.Decoder):
         ('kelvin', 'Temperature in Kelvin'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IGNORE START REPEAT'
         self.data = []
 
diff --git a/decoders/modbus/pd.py b/decoders/modbus/pd.py
index 1942e18..3420f99 100644
--- a/decoders/modbus/pd.py
+++ b/decoders/modbus/pd.py
@@ -846,7 +846,7 @@ class Decoder(srd.Decoder):
             'values': ('RX', 'TX')},
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ADUSc = None # Start off with empty slave -> client ADU.
         self.ADUCs = None # Start off with empty client -> slave ADU.
 
diff --git a/decoders/mrf24j40/pd.py b/decoders/mrf24j40/pd.py
index 6885054..8ef7017 100644
--- a/decoders/mrf24j40/pd.py
+++ b/decoders/mrf24j40/pd.py
@@ -43,7 +43,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (4,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ss_cmd, self.es_cmd = 0, 0
         self.mosi_bytes = []
         self.miso_bytes = []
diff --git a/decoders/mxc6225xu/pd.py b/decoders/mxc6225xu/pd.py
index 962f963..832eb06 100644
--- a/decoders/mxc6225xu/pd.py
+++ b/decoders/mxc6225xu/pd.py
@@ -72,7 +72,7 @@ class Decoder(srd.Decoder):
         ('text', 'Human-readable text'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
 
     def start(self):
diff --git a/decoders/nrf24l01/pd.py b/decoders/nrf24l01/pd.py
index 2337d4b..d46eea4 100644
--- a/decoders/nrf24l01/pd.py
+++ b/decoders/nrf24l01/pd.py
@@ -94,7 +94,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (ann_warn,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.next()
         self.requirements_met = True
         self.cs_was_released = False
diff --git a/decoders/nunchuk/pd.py b/decoders/nunchuk/pd.py
index 0861cba..48a7099 100644
--- a/decoders/nunchuk/pd.py
+++ b/decoders/nunchuk/pd.py
@@ -47,7 +47,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (14,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.sx = self.sy = self.ax = self.ay = self.az = self.bz = self.bc = -1
         self.databytecount = 0
diff --git a/decoders/onewire_link/pd.py b/decoders/onewire_link/pd.py
index 2be0242..bd64aa1 100644
--- a/decoders/onewire_link/pd.py
+++ b/decoders/onewire_link/pd.py
@@ -93,7 +93,7 @@ class Decoder(srd.Decoder):
     def putrs(self, data):
         self.put(self.rise, self.samplenum, self.out_ann, data)
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.samplenum = 0
         self.state = 'WAIT FOR FALLING EDGE'
diff --git a/decoders/onewire_network/pd.py b/decoders/onewire_network/pd.py
index bddc4a8..1a7567a 100644
--- a/decoders/onewire_network/pd.py
+++ b/decoders/onewire_network/pd.py
@@ -45,7 +45,7 @@ class Decoder(srd.Decoder):
         ('text', 'Human-readable text'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ss_block = 0
         self.es_block = 0
         self.state = 'COMMAND'
diff --git a/decoders/pan1321/pd.py b/decoders/pan1321/pd.py
index b70defc..a8938c6 100644
--- a/decoders/pan1321/pd.py
+++ b/decoders/pan1321/pd.py
@@ -39,7 +39,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Human-readable warnings'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.cmd = ['', '']
         self.ss_block = None
 
diff --git a/decoders/pwm/pd.py b/decoders/pwm/pd.py
index add7610..6ca46b1 100644
--- a/decoders/pwm/pd.py
+++ b/decoders/pwm/pd.py
@@ -49,7 +49,7 @@ class Decoder(srd.Decoder):
         ('raw', 'RAW file'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ss_block = self.es_block = None
         self.first_transition = True
         self.first_samplenum = None
diff --git a/decoders/qi/pd.py b/decoders/qi/pd.py
index cba4ce9..6db4bf5 100644
--- a/decoders/qi/pd.py
+++ b/decoders/qi/pd.py
@@ -73,7 +73,7 @@ class Decoder(srd.Decoder):
         ('packets', 'Packets', (5, 6, 7)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.reset_variables()
 
diff --git a/decoders/rfm12/pd.py b/decoders/rfm12/pd.py
index 9bcbd9d..46e5b07 100644
--- a/decoders/rfm12/pd.py
+++ b/decoders/rfm12/pd.py
@@ -43,7 +43,7 @@ class Decoder(srd.Decoder):
         ('interpretation', 'Interpretation', (5,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.mosi_bytes, self.miso_bytes = [], []
         self.mosi_bits, self.miso_bits = [], []
         self.row_pos = [0, 0, 0]
diff --git a/decoders/rgb_led_spi/pd.py b/decoders/rgb_led_spi/pd.py
index dc08750..9a465ad 100644
--- a/decoders/rgb_led_spi/pd.py
+++ b/decoders/rgb_led_spi/pd.py
@@ -33,7 +33,7 @@ class Decoder(srd.Decoder):
         ('rgb', 'RGB values'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.ss_cmd, self.es_cmd = 0, 0
         self.mosi_bytes = []
 
diff --git a/decoders/rgb_led_ws281x/pd.py b/decoders/rgb_led_ws281x/pd.py
index e317b71..439f736 100644
--- a/decoders/rgb_led_ws281x/pd.py
+++ b/decoders/rgb_led_ws281x/pd.py
@@ -46,7 +46,7 @@ class Decoder(srd.Decoder):
         ('rgb', 'RGB', (2,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.oldpin = None
         self.packet_ss = None
diff --git a/decoders/rtc8564/pd.py b/decoders/rtc8564/pd.py
index 258ec27..4bcd096 100644
--- a/decoders/rtc8564/pd.py
+++ b/decoders/rtc8564/pd.py
@@ -52,7 +52,7 @@ class Decoder(srd.Decoder):
         ('date-time', 'Date/time', (9, 10)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.hours = -1
         self.minutes = -1
diff --git a/decoders/sdcard_sd/pd.py b/decoders/sdcard_sd/pd.py
index 8382224..442a563 100644
--- a/decoders/sdcard_sd/pd.py
+++ b/decoders/sdcard_sd/pd.py
@@ -61,7 +61,7 @@ class Decoder(srd.Decoder):
         ('cmd', 'Commands', tuple(range(128))),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'GET COMMAND TOKEN'
         self.token = []
         self.oldpins = None
diff --git a/decoders/sdcard_spi/pd.py b/decoders/sdcard_spi/pd.py
index ad6329b..e069b6e 100644
--- a/decoders/sdcard_spi/pd.py
+++ b/decoders/sdcard_spi/pd.py
@@ -46,7 +46,7 @@ class Decoder(srd.Decoder):
         ('cmd-reply', 'Commands/replies', tuple(range(134))),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.ss, self.es = 0, 0
         self.ss_bit, self.es_bit = 0, 0
diff --git a/decoders/spdif/pd.py b/decoders/spdif/pd.py
index e6977e2..da3ca28 100644
--- a/decoders/spdif/pd.py
+++ b/decoders/spdif/pd.py
@@ -58,7 +58,7 @@ class Decoder(srd.Decoder):
     def puty(self, data):
         self.put(self.ss_edge, self.samplenum, self.out_ann, data)
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'GET FIRST PULSE WIDTH'
         self.olddata = None
         self.ss_edge = None
diff --git a/decoders/spiflash/pd.py b/decoders/spiflash/pd.py
index 0dfa035..1e3b916 100644
--- a/decoders/spiflash/pd.py
+++ b/decoders/spiflash/pd.py
@@ -73,7 +73,7 @@ class Decoder(srd.Decoder):
             'values': tuple(chips.keys())},
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = None
         self.cmdstate = 1
         self.addr = 0
diff --git a/decoders/stepper_motor/pd.py b/decoders/stepper_motor/pd.py
index 1527d48..8a1c2e1 100644
--- a/decoders/stepper_motor/pd.py
+++ b/decoders/stepper_motor/pd.py
@@ -50,7 +50,7 @@ class Decoder(srd.Decoder):
         ('position', 'Position', (1,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.oldstep = None
         self.prev_step_ss = None
         self.pos = 0
diff --git a/decoders/swd/pd.py b/decoders/swd/pd.py
index d53d149..3414c35 100644
--- a/decoders/swd/pd.py
+++ b/decoders/swd/pd.py
@@ -92,7 +92,7 @@ class Decoder(srd.Decoder):
         ('parity', 'PARITY'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         # SWD data/clock state
         self.state = 'UNKNOWN'
         self.oldclk = -1
diff --git a/decoders/t55xx/pd.py b/decoders/t55xx/pd.py
index 5e47d3e..57838f0 100644
--- a/decoders/t55xx/pd.py
+++ b/decoders/t55xx/pd.py
@@ -66,7 +66,7 @@ class Decoder(srd.Decoder):
         ('decode', 'Decode', (10,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.oldpin = None
         self.last_samplenum = None
diff --git a/decoders/tca6408a/pd.py b/decoders/tca6408a/pd.py
index 1f90245..a794547 100644
--- a/decoders/tca6408a/pd.py
+++ b/decoders/tca6408a/pd.py
@@ -41,7 +41,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (2,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.state = 'IDLE'
         self.chip = -1
 
diff --git a/decoders/timing/pd.py b/decoders/timing/pd.py
index 5e2aaa7..e0795f3 100644
--- a/decoders/timing/pd.py
+++ b/decoders/timing/pd.py
@@ -55,7 +55,7 @@ class Decoder(srd.Decoder):
         ('time', 'Time', (0,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.oldpin = None
         self.last_samplenum = None
diff --git a/decoders/tlc5620/pd.py b/decoders/tlc5620/pd.py
index df42bfb..317e4ed 100644
--- a/decoders/tlc5620/pd.py
+++ b/decoders/tlc5620/pd.py
@@ -71,7 +71,7 @@ class Decoder(srd.Decoder):
         ('errors', 'Errors', (9,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.oldpins = self.oldclk = self.oldload = self.oldldac = None
         self.bits = []
         self.ss_dac_first = None
diff --git a/decoders/uart/pd.py b/decoders/uart/pd.py
index db1065d..0e6e548 100644
--- a/decoders/uart/pd.py
+++ b/decoders/uart/pd.py
@@ -160,7 +160,7 @@ class Decoder(srd.Decoder):
         s, halfbit = self.startsample[rxtx], self.bit_width / 2.0
         self.put(s - floor(halfbit), self.samplenum + ceil(halfbit), self.out_binary, data)
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.samplenum = 0
         self.frame_start = [-1, -1]
diff --git a/decoders/usb_power_delivery/pd.py b/decoders/usb_power_delivery/pd.py
index ad28d97..c908e53 100644
--- a/decoders/usb_power_delivery/pd.py
+++ b/decoders/usb_power_delivery/pd.py
@@ -439,7 +439,7 @@ class Decoder(srd.Decoder):
         self.putwarn('No start of packet found', 'XXX')
         return -1   # No Start Of Packet
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.samplerate = None
         self.idx = 0
         self.packet_seq = 0
diff --git a/decoders/wiegand/pd.py b/decoders/wiegand/pd.py
index 1f03651..2352fbc 100644
--- a/decoders/wiegand/pd.py
+++ b/decoders/wiegand/pd.py
@@ -48,7 +48,7 @@ class Decoder(srd.Decoder):
         ('state', 'Stream state', (1,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self._samples_per_bit = 10
 
         self._d0_prev = None
diff --git a/decoders/xfp/pd.py b/decoders/xfp/pd.py
index 1e971e6..26f3311 100644
--- a/decoders/xfp/pd.py
+++ b/decoders/xfp/pd.py
@@ -36,7 +36,7 @@ class Decoder(srd.Decoder):
         ('fields', 'XFP structure fields'),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         # Received data items, used as an index into samplenum/data
         self.cnt = -1
         # Start/end sample numbers per data item
diff --git a/decoders/z80/pd.py b/decoders/z80/pd.py
index e0d7ae4..a8acf53 100644
--- a/decoders/z80/pd.py
+++ b/decoders/z80/pd.py
@@ -110,7 +110,7 @@ class Decoder(srd.Decoder):
         ('warnings', 'Warnings', (Ann.WARN,))
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.prev_cycle = Cycle.NONE
         self.op_state   = self.state_IDLE