(self, block_num, buf)
| 274 | raise OSError(5) # EIO |
| 275 | |
| 276 | def writeblocks(self, block_num, buf): |
| 277 | # workaround for shared bus, required for (at least) some Kingston |
| 278 | # devices, ensure MOSI is high before starting transaction |
| 279 | self.spi.write(b"\xff") |
| 280 | |
| 281 | nblocks, err = divmod(len(buf), 512) |
| 282 | assert nblocks and not err, "Buffer length is invalid" |
| 283 | if nblocks == 1: |
| 284 | # CMD24: set write address for single block |
| 285 | if self.cmd(24, block_num * self.cdv, 0) != 0: |
| 286 | raise OSError(5) # EIO |
| 287 | |
| 288 | # send the data |
| 289 | self.write(_TOKEN_DATA, buf) |
| 290 | else: |
| 291 | # CMD25: set write address for first block |
| 292 | if self.cmd(25, block_num * self.cdv, 0) != 0: |
| 293 | raise OSError(5) # EIO |
| 294 | # send the data |
| 295 | offset = 0 |
| 296 | mv = memoryview(buf) |
| 297 | while nblocks: |
| 298 | self.write(_TOKEN_CMD25, mv[offset : offset + 512]) |
| 299 | offset += 512 |
| 300 | nblocks -= 1 |
| 301 | self.write_token(_TOKEN_STOP_TRAN) |
| 302 | |
| 303 | def ioctl(self, op, arg): |
| 304 | if op == 4: # get number of blocks |
nothing calls this directly
no test coverage detected