id = 'usb_request'
name = 'USB request'
longname = 'Universal Serial Bus (LS/FS) transaction/request'
- desc = 'USB (low-speed and full-speed) transaction/request protocol.'
+ desc = 'USB (low-speed/full-speed) transaction/request protocol.'
license = 'gplv2+'
inputs = ['usb_packet']
outputs = ['usb_request']
+ tags = ['PC']
annotations = (
('request-setup-read', 'Setup: Device-to-host'),
('request-setup-write', 'Setup: Host-to-device'),
)
def __init__(self):
+ self.reset()
+
+ def reset(self):
self.samplerate = None
self.request = {}
self.request_id = 0
def metadata(self, key, value):
if key == srd.SRD_CONF_SAMPLERATE:
self.samplerate = value
- self.secs_per_sample = float(1) / float(self.samplerate)
+ if self.samplerate:
+ self.secs_per_sample = float(1) / float(self.samplerate)
def start(self):
self.out_binary = self.register(srd.OUTPUT_BINARY)