The functions ux_device_class_cdc_acm_ioctl(g_cdc, UX_SLAVE_CLASS_CDC_ACM_IOCTL_TRANSMISSION_START, &call_back) and ux_device_class_cdc_acm_ioctl(g_cdc, UX_SLAVE_CLASS_CDC_ACM_IOCTL_TRANSMISSION_STOP, UX_NULL) returns error 0x54 (UX_FUNCTION_NOT_SUPPORTED).
Error?
Hello J A,
Can you please provide more information about your project and using of this function in it?
Kind regards,
Sergey
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See the S5D5_TB_CDC_ACM_non_blocking USB example:
/* Specify the read and write callback functions that can be used with the ux_device_class_cdc_acm_ioctl function */ call_back.ux_device_class_cdc_acm_parameter_read_callback = cdc_acm_read_callback; call_back.ux_device_class_cdc_acm_parameter_write_callback = cdc_acm_write_callback; status = ux_device_class_cdc_acm_ioctl(gp_cdc, UX_SLAVE_CLASS_CDC_ACM_IOCTL_TRANSMISSION_START, &call_back); The function ux_device_class_cdc_acm_ioctl returns 0x54
This function also returns 0x54 with the use of SSP 2.2.0.
This function returns 0x0 with ssp versions 2.0.0 and 2.1.0.
(Using the S5D5_TB_CDC_ACM_non_blocking USB example with the PK-S5D9 board)
Thank you for your answer. I will forward your request to the development team. Please wait a bit while they review it.
Hello,
Apologies for the delay!
After checking your issue internally, we would like to inform you that:
If you add USBX CDC_ACM Source, USBX Source (and ThreadX source) to an SSP 2.4.0 project.
And take a look in the file ux_device_class_cdc_axm_ioctl.c
You will see the case UX_SLAVE_CLASS_CDC_ACM_IOCTL_TRANSMISSION_START is disabled, so it will fall through to the default case and the status you will get is UX_FUNCTION_NOT_SUPPORTED.
Which as you mentioned is defined as :
#define UX_FUNCTION_NOT_SUPPORTED 0x54 in ux_api.h.
If you go to USBX Source Properties tab and you change disable CDC ACM Non-Blocking Transmission to No in the properties for USBX source:
Case UX_SLAVE_CLASS_CDC_ACM_IOCTL_TRANSMISSION_START will be enabled.
Hope it helps.
Regards,
IK_Renesas