Hi Claire,
> In hci_uart_write_work, there is a loop/goto checking the value of
> HCI_UART_TX_WAKEUP. If HCI_UART_TX_WAKEUP is set again, it keeps trying
> hci_uart_dequeue; otherwise, it clears HCI_UART_SENDING and returns.
>
> In hci_uart_tx_wakeup, if HCI_UART_SENDING is already set, it sets
>
In hci_uart_write_work, there is a loop/goto checking the value of
HCI_UART_TX_WAKEUP. If HCI_UART_TX_WAKEUP is set again, it keeps trying
hci_uart_dequeue; otherwise, it clears HCI_UART_SENDING and returns.
In hci_uart_tx_wakeup, if HCI_UART_SENDING is already set, it sets
HCI_UART_TX_WAKEUP, ski
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