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enable configuring the bInterval on hid devices #1087

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enable configuring the bInterval on hid devices #1087

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36a3ece
usb-device-hid: Enable configuring the bInterval on hid devices.
Feb 23, 2026
64ffb45
use-device-hid: Rename binterval to interval_ms.
Apr 1, 2026
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6 changes: 5 additions & 1 deletion micropython/usb/usb-device-hid/usb/device/hid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,7 @@ def __init__(
set_report_buf=None,
protocol=_INTERFACE_PROTOCOL_NONE,
interface_str=None,
binterval=8,
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):
# Construct a new HID interface.
#
Expand All @@ -85,12 +86,15 @@ def __init__(
# - protocol can be set to a specific value as per HID v1.11 section 4.3 Protocols, p9.
#
# - interface_str is an optional string descriptor to associate with the HID USB interface.
#
# - binterval this is the polling rate the device will request the host use in milliseconds.
super().__init__()
self.report_descriptor = report_descriptor
self.extra_descriptors = extra_descriptors
self._set_report_buf = set_report_buf
self.protocol = protocol
self.interface_str = interface_str
self.binterval = binterval

self._int_ep = None # set during enumeration

Expand Down Expand Up @@ -150,7 +154,7 @@ def desc_cfg(self, desc, itf_num, ep_num, strs):
# Add the typical single USB interrupt endpoint descriptor associated
# with a HID interface.
self._int_ep = ep_num | _EP_IN_FLAG
desc.endpoint(self._int_ep, "interrupt", 8, 8)
desc.endpoint(self._int_ep, "interrupt", 8, self.binterval)

self.idle_rate = 0

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