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https://github.com/trezor/trezor-firmware.git
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28 lines
495 B
C
28 lines
495 B
C
/*
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* Copyright (c) Pavol Rusnak, SatoshiLabs
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*
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* Licensed under TREZOR License
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* see LICENSE file for details
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*/
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#include "usb.h"
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void msg_init(void)
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{
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}
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ssize_t msg_recv(uint8_t *iface, uint8_t *buf, size_t len)
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{
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int i = usb_hid_read_select(0);
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if (i < 0) {
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return 0;
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}
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*iface = i;
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return usb_hid_read(i, buf, len);
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}
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ssize_t msg_send(uint8_t iface, const uint8_t *buf, size_t len)
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{
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return usb_hid_write_blocking(iface, buf, len, 1); // 1ms timeout
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}
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