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sys/usb/cdc/acm: implementation of stdio_available

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This commit is contained in:
Gunar Schorcht 2021-12-25 13:12:16 +01:00
parent 0ffad24112
commit af621ec91b
3 changed files with 9 additions and 0 deletions
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1
makefiles/stdio.inc.mk
View File

@ -17,6 +17,7 @@ endif
ifneq (,$(filter stdio_cdc_acm,$(USEMODULE)))
USEMODULE += usbus_cdc_acm
USEMODULE += isrpipe
USEMODULE += stdio_available
endif
ifneq (,$(filter stdio_rtt,$(USEMODULE)))

1
sys/usb/usbus/cdc/acm/Kconfig
View File

@ -58,5 +58,6 @@ config MODULE_STDIO_CDC_ACM
bool "CDC ACM"
depends on MODULE_USBUS_CDC_ACM
select MODULE_ISRPIPE
select MODULE_STDIO_AVAILABLE
endchoice

7
sys/usb/usbus/cdc/acm/cdc_acm_stdio.c
View File

@ -51,6 +51,13 @@ void stdio_init(void)
#endif
}
#if IS_USED(MODULE_STDIO_AVAILABLE)
int stdio_available(void)
{
return tsrb_avail(&_cdc_stdio_isrpipe.tsrb);
}
#endif
ssize_t stdio_read(void* buffer, size_t len)
{
(void)buffer;