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spi-transfer: Add SPI transfer helper routines

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These routines assume that any messages is composed of a write and/or
read part. While the API allows sending and receiving as part of one
messages/transfer, it does not permit full duplex operation where data is
both send and received at the same time.
This commit is contained in:
Benjamin Berg
2021-01-18 16:41:01 +01:00
committed by Benjamin Berg
parent b0d9d00762
commit 7fcce7891a
6 changed files with 612 additions and 0 deletions
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11
libfprint/fpi-ssm.h
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@@ -112,4 +112,15 @@ void fpi_ssm_usb_transfer_with_weak_pointer_cb (FpiUsbTransfer *transfer,
gpointer weak_ptr,
GError *error);
typedef struct _FpiSpiTransfer FpiSpiTransfer;
void fpi_ssm_spi_transfer_cb (FpiSpiTransfer *transfer,
FpDevice *device,
gpointer unused_data,
GError *error);
void fpi_ssm_spi_transfer_with_weak_pointer_cb (FpiSpiTransfer *transfer,
FpDevice *device,
gpointer weak_ptr,
GError *error);
G_DEFINE_AUTOPTR_CLEANUP_FUNC (FpiSsm, fpi_ssm_free)