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fix #558 third attempt

This commit is contained in:
charkster 2021-01-28 18:34:58 -07:00
parent 4f988b792c
commit effd82fd9c
1 changed files with 2 additions and 2 deletions
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4
examples/device/usbtmc/src/usb_descriptors.c
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@ -80,8 +80,8 @@ uint8_t const * tud_descriptor_device_cb(void)
TUD_USBTMC_BULK_DESCRIPTORS(/* OUT = */0x01, /* IN = */ 0x81, /* packet size = */USBTMCD_MAX_PACKET_SIZE)
#if CFG_TUD_USBTMC_ENABLE_INT_EP
// USBTMC Interrupt xfer always has length of 2, but we use epMaxSize=8 here for compatibility
// with microcontrollers that only allow 8, 16, 32 or 64 for FS endpoints
// USBTMC Interrupt xfer always has length of 2, but we use epMaxSize=8 for
// compatibility with mcus that only allow 8, 16, 32 or 64 for FS endpoints
# define TUD_USBTMC_DESC(_itfnum) \
TUD_USBTMC_DESC_MAIN(_itfnum, /* _epCount = */ 3), \
TUD_USBTMC_INT_DESCRIPTOR(/* INT ep # */ 0x82, /* epMaxSize = */ 8, /* bInterval = */16u )