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7c3d02285a
While assumed not to make a difference, not using the factor-2 prescaler
makes the receiver more susceptible to errors.
Specifically, there have been reports of problems with devices that
cannot generate a 115200 rate with a smaller error than 2.1% (e.g.
117647 bps). But this can also be reproduced with a low-speed RS232
tranceiver at 115200 when the input rate matches the nominal rate.
So whenever possible, enable the factor-2 prescaler and halve the
divisor in order to use settings closer to that of the previous
algorithm.
Fixes:
|
||
|---|---|---|
| .. | ||
| aircable.c | ||
| ark3116.c | ||
| belkin_sa.c | ||
| belkin_sa.h | ||
| bus.c | ||
| ch341.c | ||
| console.c | ||
| cp210x.c | ||
| cyberjack.c | ||
| cypress_m8.c | ||
| cypress_m8.h | ||
| digi_acceleport.c | ||
| empeg.c | ||
| ezusb_convert.pl | ||
| f81232.c | ||
| f81534.c | ||
| ftdi_sio_ids.h | ||
| ftdi_sio.c | ||
| ftdi_sio.h | ||
| garmin_gps.c | ||
| generic.c | ||
| io_16654.h | ||
| io_edgeport.c | ||
| io_edgeport.h | ||
| io_ionsp.h | ||
| io_ti.c | ||
| io_ti.h | ||
| io_usbvend.h | ||
| ipaq.c | ||
| ipw.c | ||
| ir-usb.c | ||
| iuu_phoenix.c | ||
| iuu_phoenix.h | ||
| Kconfig | ||
| keyspan_pda.c | ||
| keyspan_usa26msg.h | ||
| keyspan_usa28msg.h | ||
| keyspan_usa49msg.h | ||
| keyspan_usa67msg.h | ||
| keyspan_usa90msg.h | ||
| keyspan.c | ||
| kl5kusb105.c | ||
| kl5kusb105.h | ||
| kobil_sct.c | ||
| kobil_sct.h | ||
| Makefile | ||
| Makefile-keyspan_pda_fw | ||
| mct_u232.c | ||
| mct_u232.h | ||
| metro-usb.c | ||
| mos7720.c | ||
| mos7840.c | ||
| mxuport.c | ||
| navman.c | ||
| omninet.c | ||
| opticon.c | ||
| option.c | ||
| oti6858.c | ||
| oti6858.h | ||
| pl2303.c | ||
| pl2303.h | ||
| qcaux.c | ||
| qcserial.c | ||
| quatech2.c | ||
| safe_serial.c | ||
| sierra.c | ||
| spcp8x5.c | ||
| ssu100.c | ||
| symbolserial.c | ||
| ti_usb_3410_5052.c | ||
| upd78f0730.c | ||
| usb_debug.c | ||
| usb_wwan.c | ||
| usb-serial-simple.c | ||
| usb-serial.c | ||
| usb-wwan.h | ||
| visor.c | ||
| visor.h | ||
| whiteheat.c | ||
| whiteheat.h | ||
| wishbone-serial.c | ||
| xsens_mt.c | ||