From aea4f6046e9a07d5f169de9fcc31bca2b667ea45 Mon Sep 17 00:00:00 2001 From: hathach Date: Thu, 12 Mar 2026 12:16:57 +0700 Subject: refactor(vendor/cdc): add CFG_TUD_CDC_RX_NEED_ZLP and CFG_TUD_VENDOR_RX_NEED_ZLP --- examples/device/printer_to_cdc/src/tusb_config.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'examples/device/printer_to_cdc/src') diff --git a/examples/device/printer_to_cdc/src/tusb_config.h b/examples/device/printer_to_cdc/src/tusb_config.h index d12313ce5..74b96c8f6 100644 --- a/examples/device/printer_to_cdc/src/tusb_config.h +++ b/examples/device/printer_to_cdc/src/tusb_config.h @@ -102,7 +102,8 @@ extern "C" { #define CFG_TUD_CDC_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64) #define CFG_TUD_CDC_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64) -// CDC Endpoint transfer buffer size +// CDC Endpoint transfer buffer size, default to max bulk packet size (HS 512, FS 64). Larger is faster. +// Larger RX_EPSIZE requires CFG_TUD_CDC_RX_NEED_ZLP = 1 and host ZLP support #define CFG_TUD_CDC_RX_EPSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64) #define CFG_TUD_CDC_TX_EPSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64) -- cgit v1.3.1