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dev-serial: add support for setting data_bits in QEMUSerialSetParams

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Also implement the behaviour reported in Linux's ftdi_sio.c whereby if an invalid
data_bits value is provided then the hardware defaults to using 8.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201027150456.24606-8-mark.cave-ayland@ilande.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2020-10-27 15:04:55 +00:00 • committed by Gerd Hoffmann
parent 66007a9567
commit a79f86cdbe
2 changed files with 18 additions and 0 deletions
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1
hw/usb/trace-events
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@ -327,6 +327,7 @@ usb_serial_handle_control(int bus, int addr, int request, int value) "dev %d:%u
usb_serial_unsupported_parity(int bus, int addr, int value) "dev %d:%u unsupported parity %d"
usb_serial_unsupported_stopbits(int bus, int addr, int value) "dev %d:%u unsupported stop bits %d"
usb_serial_unsupported_control(int bus, int addr, int request, int value) "dev %d:%u got unsupported/bogus control 0x%x, value 0x%x"
usb_serial_unsupported_data_bits(int bus, int addr, int value) "dev %d:%u unsupported data bits %d, falling back to 8"
usb_serial_bad_token(int bus, int addr) "dev %d:%u bad token"
usb_serial_set_baud(int bus, int addr, int baud) "dev %d:%u baud rate %d"
usb_serial_set_data(int bus, int addr, int parity, int data, int stop) "dev %d:%u parity %c, data bits %d, stop bits %d"