diff options
Diffstat (limited to 'src/generic/usb_cdc.c')
| -rw-r--r-- | src/generic/usb_cdc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/generic/usb_cdc.c b/src/generic/usb_cdc.c index 1e12f6a7..3899d7c3 100644 --- a/src/generic/usb_cdc.c +++ b/src/generic/usb_cdc.c @@ -290,7 +290,7 @@ static const struct descriptor_s { // State tracking enum { - UX_READ = 1<<0, UX_SEND = 1<<1, UX_SEND_ZLP = 1<<2 + UX_READ = 1<<0, UX_SEND = 1<<1, UX_SEND_PROGMEM = 1<<2, UX_SEND_ZLP = 1<<3 }; static void *usb_xfer_data; @@ -315,6 +315,8 @@ usb_do_xfer(void *data, uint_fast8_t size, uint_fast8_t flags) int_fast8_t ret; if (flags & UX_READ) ret = usb_read_ep0(data, xs); + else if (NEED_PROGMEM && flags & UX_SEND_PROGMEM) + ret = usb_send_ep0_progmem(data, xs); else ret = usb_send_ep0(data, xs); if (ret == xs) { @@ -359,7 +361,8 @@ usb_req_get_descriptor(struct usb_ctrlrequest *req) const struct descriptor_s *d = &cdc_descriptors[i]; if (READP(d->wValue) == req->wValue && READP(d->wIndex) == req->wIndex) { - uint_fast8_t size = READP(d->size), flags = UX_SEND; + uint_fast8_t size = READP(d->size); + uint_fast8_t flags = NEED_PROGMEM ? UX_SEND_PROGMEM : UX_SEND; if (size > req->wLength) size = req->wLength; else if (size < req->wLength) |