ata_choose_xfer_mode
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Name

ata_choose_xfer_mode — attempt to find best transfer mode

Synopsis

int ata_choose_xfer_mode (const struct ata_port *  ap,
 u8 *  xfer_mode_out,
 unsigned int *  xfer_shift_out);

Arguments

ap

Port for which an xfer mode will be selected

xfer_mode_out

(output) SET FEATURES - XFER MODE code

xfer_shift_out

(output) bit shift that selects this mode

Description

Based on host and device capabilities, determine the maximum transfer mode that is amenable to all.

LOCKING

PCI/etc. bus probe sem.

RETURNS

Zero on success, negative on error.

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